junger D*AP4 FLX, D*AP4 LM User Manual

DAP4-MEI_manual_EN_150817.doc

D*AP4

Hardware Features

• 1RU compact 19" processing device with front side info display

• Dual power supply second power supply for redundancy

• Front panel info display for signal activity, IP address, status alert

• Two hidden touch buttons to change the content of the info display

• Remote Panel optional X*AP RM1 panel

• Audio inputs balance/unbalanced AES – manual selection

•

Audio o

utputs

balance/unbalanced AES

• One interface slot I/O expansion slot for one option board at a time

• RJ45 network connector 100BaseT full duplex Ethernet interface

• USB B connector built in USB < > serial adapter to access the device service port

• 8 GPI/Os 8 balanced inputs, 8 relay closure combined on a 25pin D-Sub

• Aux power supply isolated 5V supply for external wiring

• External sync IN 75Ohm input (Word Clock, AES, Black Burst, Tri-Level)

• Sync OUT 75Ohm Word Clock output

Software Features in general

The D*AP4 may be purchased as a Level Magic Edition and will appear as D*AP4 LM or based on the
software licenses of the FLX concept. In this case it appears as D*AP4 FLX.
Pls. contact your local dealer for details.

• LevelMagic loudness management according to ITU BS.1770-1/-2/-3
EBU R128, ATSC A/85, ARIB TR-B32, Free TV OP-59, Portaria 354

• Dynamic filter optional SPECTRAL SIGNATURE™ dynamic EQ

• EQ optional 5 band parametric

• Dynamics optional compressor, expander / gate

• Fail over optional automatic switch over with signal loss detection

• Voice over optional stereo or mono voice over extra program input, pan

• FM Conditioner optional MPX limiter and Pre-Emphasis

• Loudness measurement in reference to the selected standard

• SNMP agent SNMP v1, see D*AP4-MIB

• Remote control EmBER plus protocol or X*AP RM1 remote panel, mobile UI

and legacy GPI/Os

Operating Manual

D*AP4

1

Content

page
Introduction ………………………………………………………………………………………….. 3

D*AP4 front panel view ……………………………………………………………………………. 4
D*AP4 rear view ……………………………………………………………………………………. 4

Block Diagram ………………………………………………………………………………………. 5
Audio Processing Blocks …………………………………………………………………………. 6
Control, Operating & Event Concept …………………………………………………………….. 6
Getting Started – quick start guide ……………………………………………………………….. 7
Getting Started – IP setup in general ……………………………………………………………. 8
Getting Started – IP setup of the D*AP4 – via console interface ………………………….. 8
Getting Started – IP setup of the D*AP4 – via web browser ……………………………….. 9
Operating – menu structure of the X*AP RM1 remote panel ………………………………….. 10
Operating – menu structure of the X*AP RM1 remote panel – operating displays ………. . 10
Operating – menu structure of the X*AP RM1 remote panel – menu tree ………………….. 13
Setup GUI – connecting with the D*AP4 ………………………………………………………… 14
Setup GUI – SYSTEM – System Status ………………………………………………………… 15
Setup GUI – SYSTEM – Overview ………………………………………………………………. 16
Setup GUI – SYSTEM – Admin ………………………………………………………………….. 16
Setup GUI – SYSTEM – Setup …………………………………………………………………… 18
Setup GUI – SYSTEM – Remote Access – X*AP Remote ……………………………………. 19
Setup GUI – SYSTEM – Remote Access – Mobile UI …………………………………………. 20
Setup GUI – SYSTEM – the preset concept in detail ………………………………………… 21
Setup GUI – SYSTEM – SNMP …………………………………………………………………… 21
Setup GUI – SYSTEM – Backup / Restore …………………………………………………….. 22
Setup GUI – SYSTEM – Firmware Update …………………………………………………….. 23
Setup GUI – SYSTEM – Reboot …………………………………………………………………. 23
Setup GUI – INTERFACES – AES I/O …………………………………………………………… 24

Setup GUI – INTERFACES – SDI I/O Interface – Overview ……………………………........ 26

Setup GUI – INTERFACES – SDI I/O Interface – Local Routing ………………………........ 27

Setup GUI – INTERFACES – SDI I/O Interface – Setup ………………................................. 28

Setup GUI – INTERFACES – SDI I/O Interface – De-Embedder …………………………..... 28

Setup GUI – INTERFACES – SDI I/O Interface – Embedder …………………………............ 29

Setup GUI – INTERFACES – MADI Interface – Status / Setup …………………………........ 30

Setup GUI – INTERFACES – MADI Interface – Local Routing …………………………........ 31

Setup GUI – INTERFACES – Dante I/O Interface – Status ………………………….............. 32

Setup GUI – INTERFACES – Dante I/O Interface – Inputs ………………………….............. 34

Setup GUI – INTERFACES – Dante I/O Interface – Ouputs …………………………............ 35

Setup GUI – INTERFACES – Dante I/O Interface – Network ………………………….......... 35

Setup GUI – INTERFACES – 4 Ch Analog I/O Interface …………………………................ 37

Setup GUI – INTERFACES – AES Interface – Status / Setup ……………………................ 38

Setup GUI – ROUTING ……………………………………………………………………………. 39
Setup GUI – AUDIO PROCESSOR – Overview ……………………………………………….. 40
Setup GUI – AUDIO PROCESSOR – Setup ……………………………………………………. 41

Setup GUI – AUDIO PROCESSOR – Input – Inputs …………………………….................... 42

Setup GUI – AUDIO PROCESSOR – Input – Phase Rotator ……………………………....... 42

Setup GUI – AUDIO PROCESSOR – Fail Over .………………………………………………. 44
Setup GUI – AUDIO PROCESSOR – De-Esser .………………………………………………. 44

Setup GUI – AUDIO PROCESSOR – Filter – Spectral Signature …………….................... 45

Setup GUI – AUDIO PROCESSOR – Filter – Equalizer ………………….............................. 48

Setup GUI – AUDIO PROCESSOR – Dynamics ………………………………………………. 50
Setup GUI – AUDIO PROCESSOR – Voice Over …………………………………………….. 52

Setup GUI – AUDIO PROCESSOR – Level Magic ………………………………………........ 53

Setup GUI – AUDIO PROCESSOR – FM Conditioner ……………………………................ 54

Setup GUI – AUDIO PROCESSOR – Output ………………………………………………….. 59

Setup GUI – AUDIO PROCESSOR – Delay …………………………………………………..... 60

Setup GUI – AUDIO PROCESSOR – Mobile UI ……………………………………………….. 60

Setup GUI – MESUREMENT – Setup ………………………….............................................. 61

Setup GUI – MESUREMENT – Loudness …………………………...................................... 62

D*AP4

2

Content

page
Setup GUI – EVENTS – Overview ………………………………………………………………. 63

Setup GUI – EVENTS – Triggers – Sources – Remote Hotkeys ……………………………. 64
Setup GUI – EVENTS – Triggers – Sources – Network ……………………………………… 64
Setup GUI – EVENTS – Triggers – Sources – Parameters ………………………………….. 65
Setup GUI – EVENTS – Triggers – Configuration – Trigger Equation ……………………… 66
Setup GUI – EVENTS – Events

– Preset Events ………………………………………..

67

Setup GUI – EVENTS – Events

– Parameter Events …………………………………..

68
Setup GUI – EVENTS – Events – Measurement Events …………………………………….. 69
Setup GUI – EVENTS – Events – I/O Events ………………………………………………….. 69
Setup GUI – EVENTS – Events – Bypass Events …………………………………………….. 70
Setup GUI – EVENTS – Actions – Event Actions …………………………………………….. 70
Setup GUI – EVENTS – Actions – Bypass Actions …………………………………………... 71
Technical Data – 4 Channel Audio Processor [D*AP4 LM EDITION, D*AP4 FLX] ………… 72
Technical Data – Option Board SDI I/O (3G/HD/SD) [O_DAP_SDI_a] ……………………… 73
Technical Data – Option Board Analog Out [O_DAP_8DA_a] ……………………………….. 74
Technical Data – Option Board Analog Out [O_DAP_ADDA_a] ……………………………... 75
Technical Data – Option Board AES/EBU I/O [O_DAP_AES_a] …………………………….. 76
Technical Data – Option Board MADI I/O, BNC [O_DAP_MB_a] ……………………………. 76
Technical Data – Option Board MADI I/O, Optical [O_DAP_MO_MM_a] …………………… 77
Technical Data – Option Board MADI I/O, Optical [O_DAP_MO_SM_a] …………………… 77
Technical Data – Option Board Audio-over-IP DANTE™ [O_DAP_DANTE_a] ……………. 78
Technical Data – Rear Connectors – pin assignment ………………………………………... 79
Technical Data – Optional Interface Modules – pin assignment ……………………………. 80
Technical Data – GPI wiring ……………………………………………………………………… 71

Safety Information …..…………………………………………………………………………… 82
Warranty …………………………………………………………………………………………….. 82

D*AP4

3

Introduction

The D*AP4 is a processing platform that may be bought in different versions as a 2 channel or 4 channel
processor. The D*AP4 LM is a fully featured loudness control device except EQs, Spectral Signature and FM
conditioner while the D*AP4 FLX will be tailor-made to your specification. Both devices may be upgraded
later on locally.

This manual refers to a fully featured D*AP4 LM.

The D*AP4 focuses on automatic and adaptive loudness management compliant with all current broadcast
audio loudness recommendations including ITU.1770 standards (revisions 1, 2 and 3) as well as
recommended practices ATSC A/85 (2011/2013), ARIB TR-B32, Free TV OP-59, Portaria 354 and EBU
R128. The D*AP4 features loudness normalization and dynamic range processing for up to two stereo
programs of audio. Sophisticated fail-over and voice-over round off the D*AP4 feature set. Dynamic range
control and Level Magic™ are based on a unique multi-loop control principle.

LEVEL MAGICII™

The algorithm offers adaptive wideband control with exceptionally high audio quality uncompromised
loudness management without any coloration, pumping, distortion or modulation effects by combining three
major gain changing elements:

· Transient Processor

· Adaptive AGC

· Distortion-free true peak limiter

Spectral Signature™

Jünger Audio’s Spectral Signature™ dynamic equalizer gives you a powerful creative tool to control the
spectral balance of your program. Spectral Signature™ analyzes incoming audio and compares its spectrum
with a predetermined reference curve. This allows dynamic EQ corrections to be applied, if necessary, to give
a consistent sound impression. Spectral Signature™ is an optional feature for the D*AP4.

FM Conditioner

A powerful option for FM broadcast and other FM applications like analog cable head ends to pre-control the
MPX power and peak deviation of a stereo FM signal, including true peak and pre-emphasis limiting.

System Integration

All system parameters are remotely accessible, allowing the unit to be integrated and remotely controlled by
broadcast control systems. This helps users to apply individual processing to their programs, which is a key
feature for well-managed loudness control.

Loudness measurement

To check compliance of programs with your local loudness regulations, the unit analyzes loudness and true
peak levels from input signals and transfers the measurement data via Ethernet to an optional measurement
and logging software anywhere in your network. These measurements can be triggered by automation
systems via GPIs, via network or even manually on the X*AP RM1 remote panel. The D*AP4 can also
generate SNMP or GPI/O alarms in case pre-determined limits are exceeded.

Web configuration

A web interface also allows easy and intuitive setup and configuration anywhere in your network.

Interfaces and system security

Audio I/Os range from onboard AES I/O to optional 3G/HD/SD-SDI I/O including video delay and analog I/O.
All combined I/O interfaces support power fail bypass relays as standard. With optional redundant PSU and
SNMP integration the unit ensures maximum operational safety.

D*AP4

4

D*AP4 front panel view

The front panel of the D*AP4 has a 3 line status display and two hidden touch buttons ~ 2.5cm left of the
display. Button 1 = Home will switch back to the power up display no matter which display level you are in.

Button 2 controls the multi level display:
Level 1 Power up display [Device type, firmware version]
Level 2 Status [OK / Error] / Device Name / IP address
Level 3 IN / OUT peak meter
Level 4 Program 1 Out - short term loudness
Level 5 Program 2 Out - short term loudness
Level 6 Program 1 Out - integrated loudness and integration time
Level 7 Program 2 Out - integrated loudness and integration time

The measures of the loudness displays depend on the setup of the respective loudness mode
(see AUDIO PROCESSOR > SETUP > Loudness Mode).

Display background Green = device status OK
color Red = device status ERROR

D*AP rear view

For fail safe operation, the D*AP4 provides two independent power supplies. These power supplies operate
in load balance. The status of both PSUs are combined with other status information and displayed as back
light color the front panel display.

STATUS shows the status of the device controller.
INIT / pressing the INIT button briefly will warm start the device controller.

RESET Holding down the button until the STATUS LED flashes 5 times will initialize the

D*AP4 to factory default
LAN RJ45 socket for Ethernet connection to a LAN
USB USB 2.0 type B socket to connect the built in USB >> serial converter with an

external PC

ISO-PWR lights up if the isolated 5V power supply for GPI /O application is turned on
Interface 1 slot to mount one of the optional interface boards (SDI, MADI, DANTE, AES,

analog)
GPI/O 25pin Sub-D female connector to interface with the 8 optical isolated general

purpose inputs and 8 solid state relay closure outputs

SYNC IN 75Ohm BNC connector to connect with external sync sources
WCLK-OUT 75Ohm BNC connector to synchronize external devices to the D*AP4 internal

word clock

AES 1/2 IN / OUT AES3 (XLR) and AES3id (BNC) input (selectable via GUI) / output (parallel)
AES 3/4 IN / OUT AES3 (XLR) and AES3id (BNC) input (selectable via GUI) / output (parallel)

D*AP4

5

Block Diagram

The above schematic shows the principal blocks of the D*AP4.
The core of the unit is the audio processor with 4 inputs and 4 outputs.
An AES I/O on the motherboard is provided for digital line operation. The respective connectors have relay

bypass for power fail operation. The bypass ciruit may be disabled by an internal jumper. For the 2 channel
version only one AES I/O is fitted.

An interface slot is provided to carry optional 3G / HD / SD-SDI, AES I/O, MADI, DANTE or even analog
expansion modules. It allows for extremely flexible interfacing of the D*AP4 in TV or radio installations.

The sync. circuit can deal with all formats to integrate the D*AP4 into digital facilities with a sample rate from

44.1 or 48kHz. Other devices may be synchronized by the word clock output of the D*AP4.
The D*AP4 has 8 balanced GPIs and 8 relay closure GPO contacts. This enables the user to simply recall

presets or call events, change device configurations and report general status information.

D*AP4

6

Audio Processing Blocks

Above you see the various function blocks of the audio processor rendered by the DSP engine.
Each function block has its representation in the GUI by individual tab sheets. You may simply click on the
respective graphical area as an alternative way to navigate through the GUI.

It is important to understand that the physical input interfaces of the device (SDI DE-EMBEDDER, AES IN)
must be routed to the DSP inputs in order to process it. Similarly the DSP outputs must be routed to output
interfaces (SDI EMBEDDER, AES OUT). You will find those settings by clicking on the ROUTING tab.

Control Concept

The communication between external applications or the X*AP RM1 remote panel, is based on
TCP/IP over Ethernet.

The setup GUI utilizes web technology. At the time of editing this manual the functionality of the web GUI is
optimized for Firefox 30.x and higher.

The setup GUI can be complemented by other application programs running on MS Windows® XP, W7, W8
like the Junger Application Manager J*AM. Operator access will also be available for mobile devices running
an appropriate browser on iOS or Android.

An SNMP agent may be activated to incorporate the device into a station monitoring system.
For 3rd party remote applications, Junger Audio highly recommends using the Ember+ protocol which is

widely distributed in the European broadcast industry. The user community is also increasing rapidly world
wide. By default, the X*AP RM1 remote panel and the D*AP4 "talk" Ember natively.

Operating Concept

Further below you will see that the setup GUI for the device is grouped into several parameter areas.
One can reach the parameters via a 3 tier navigation by tabs which may have sub tabs, and the sub tabs may
have pages embedded or extra soft buttons for groups of parameters.

Each function block (parameter area) has dedicated presets. The presets can be recalled at any time during
operation, either by manual intervention via the embedded web server (browser based GUI), automatically
by the internal event manager or by external applications.

For all relevant settings an ON AIR and a PRESET part exists. I.e. you may either edit the parameters
ON AIR or offline for the respective part of the D*AP4.

The presets of the D*AP4 are persistent by nature. You are working directly on the preset memory.
I.e. you need not to worry about storing such presets, the D*AP4 does it for you.

D*AP4

7

Event Concept

The D*AP4 incorporates a sophisticated event management system.
Events may be combined to perform actions. The D*AP4 offers these event types:

* Preset Events for System set up, Interfaces, Routing, Audio Processing etc.
* I/O Events to control GPOs
* Bypass Events for pre-configured bypass scenarios
* Measurement Events to control loudness measurements per program

These events may be combined to form Actions which are fired by Triggers.
Triggers are defined by a logical combination (AND, OR, XOR) of two random trigger sources.

Trigger source may be GPIs, hotkeys of the X*AP RM1 remote panel, network commands, parameters, other
active events, other active triggers (nested trigger), or device status information (e.g. sync lost).

Getting Started – quick start guide

Before the D*AP4 can be used, there are some basic configuration steps which must be followed in the order
set out below. This example assumes you will process one stereo program that is embedded into
SDI group1 Ch1/2.

* Connect the SDI signal (from a source like the station router or video server) to the SDI IN.
* Connect the SDI OUT connector to your destination device (station router or monitor box).
* Connect the BNC SYNC IN to the Black Burst reference of your TV station.
* Hook up the device to the station PC network

- Consult your IT administrator for assistance if you are not sure about this procedure

- Connect it to a switch or hub or directly to a PC / LapTop by an Ethernet cable
(some PCs need a cross over [1:1] cable when connected with the D*AP4 directly)

- Find an unused IP address - ask your administrator!

- Assign it that IP address and set the network mask accordingly, a gateway is optional
(see next page for details)

* Open a browser (FireFox recommended) and connect with the device

- Type in the IP address as an URL

* Set the sync source

- SYSTEM > Setup > Sync Source Priority > Choice 1=Sync-In BB
leave all other Choices x=OFF (for the beginning)

- SYSTEM > Setup > System Clock > Sample Rate=Follow Source

* Set the routing to the Audio Processor (DSP)

- ROUTING > SDI DE-EMBEDDER > DM1=DSP 1

- ROUTING > SDI DE-EMBEDDER > DM2=DSP 2

* Set the routing from the Audio Processor (DSP)

- ROUTING > DSP > DSP 1=SDI EMBEDDER > EMB 1

- ROUTING > DSP > DSP 2=SDI EMBEDDER > EMB 2

* Enable the SDI embdder

- INTERFACES > SDI I/O Interface > Embedder > SDI OUT Gr1=ON (check box)

- Check if the routing radio buttons will connect "From Routing EMB 1/2" to "SDI Out Gr1 1/2"

Now you should hear your source stereo program signal at the destination and you may start experimenting
with the various parameters of the audio processing blocks.

D*AP4

8

Getting Started – IP setup in general

The process of installing a D*AP4 into an IP network is as follows:

1. Ask the system administrator for a unique IP addresses of the network,
the netmask and gateway address

2. Assign the D*AP4 an IP address
You have 2 choices to assign the D*AP4 an IP address:

* From the serial console interface
* Via Web browser

Important Note! If you are not familiar with setting up devices for IP communication, we highly recommend
you consult your system service or IT department to assist you.

Getting Started – IP setup of the D*AP4 – via console interface

The tool to change the IP configuration of the D*AP8 can be selected via the console interface. You must
connect it with the PC via an USB A to B cable. This will install the driver for the built-in USB to serial
converter. Now you can open a terminal program. Here you must select the virtual COM port assigned by
the OS. The communication parameters are:

115200kBaud, 8, N, 1 no hand shake. Pressing <ENTER> will open the console menu:

[2014-08-22 12:01] Your choice:

Select item "2": <ENTER>

Current network configuration

IP Address: 10.110.24.128
Netmask ...: 255.255.0.0

Gateway ...: 10.110.0.1
Enter new IP address, press ENTER to cancel:

You must enter the new IP address (e.g.): "192.168.178.78" <Enter>

Enter new netmask, press ENTER to cancel:

You must enter the new netmask (e.g.): "255.255.255.0" <Enter>

Enter new gateway address, press ENTER to configure without gateway:

You may press <Enter> to skip this point or
You may enter the new gateway address (e.g.): "192.168.178.1" <Enter>

Important Note! The gateway entry is optional but you must take care that the gateway address matches the
network mask related to the device IP address! If you are not sure simply enter 0.0.0.0.
or leave it without an entry.

Changing Network configuration
Network configuration has been changed. Please reboot the device
to activate the new settings.

D*AP4

9

Select item "8: Reboot" <ENTER>

Do you want to reboot the device ?

Press small "y" <ENTER>

Rebooting the device ……..

After reboot has finished, the new IP configuration is active and will be displayed at the top of the
configuration menu.

Getting Started – IP setup of the D*AP4 – via web browser

* Read the default IP address printed on the label at the rear of the device.

* Set up network parameters of your PC to fit the default IP address of the D*AP4

(e.g. default IP +1 and net mask = 255.255.0.0).

* Connect the D*AP4 with the PC either by a Ethernet patch or a cross over cable

(if the PC does not support Auto MDI-X) or via a switch.

* Open a browser and type the default IP address of the D*AP4 into the URL field and press <ENTER>.

This will open the AUDIO PROCESSOR tab sheet of the GUI.

* Click on <SYSTEM> and afterwards the "Admin" tab:

Enter the desired network configuration and press <apply>
Afterwards you must reboot the D*AP4 in order to activate the new IP configuration.

Important Note! After reboot neither the web browser nor the X*AP RM1 remote panel may be able to

communicate with the D*AP4. You must change back the IP configuration of the PC and fill in the new IP

address in the URL field. You must change the X*AP RM1 remote panel settings as well to attach this device

again.

D*AP4

10

Operating - menu structure of the X*AP RM1 remote panel

Power up display – may show up to four D*APx enabled for remote control for this X*AP RM

1

remote panel. The example below has just one D*AP4 unit [given name "TV3 HD"] attached for

remote control. The status is "connect" (i.e. you may connect with that device).

See X*AP RM1 manual for details.

Pressing that button will connect with that D*AP4.

Now the X*AP RM1 remote panel will gather all necessary information from that D*AP4 unit

(this may take a few seconds). When finished the main operating display opens up:

From here you may fire pre-defined hotkeys and observe the loudness of the processed programs.

Because this is the main operating display, the <ESC> button lights red to indicate that the

power up display is below the main operating display.

Pressing <ESC> sends you back to the power up display (device selection).

Operating – menu structure of the X*AP RM1 remote panel – operating displays

When you press the <MENU> button, the upper operating display opens up:

When pressing the <ESC> button you will return to the main operating display.

MENU

ESC

Remote Panel select device to control

TV3 HD

10.110.96.13
connect

MENU

ESC

R128 ITU1770 Loudn Lim

D02 Limiter!

Nicerizer

[Panic 1 Panic 2]

Program 1

Program 2

-21.0

LUFS

-21.5

LUFS

EBU
S

out

MENU

ESC

Menu TV3 HD

10.110.96.15

Audio

Processor

EBU R128
Meter

D*AP4

11

Operating display – EBU R128 Meter

The meter style (ITU BS.1770-x / ATSC / EBU etc.) is defined by the settings of:
AUDIO PROCESOR > Level Magic > Loudness Mode (example is for EBU R12().
The above menu serves as a display of measurement values and offers the metering control buttons
(reset & pause / continue).
<ESC> returns to the main operating display.

Operating display – Audio Processor

<ESC> returns to the operating display.
This menu gives access to tweak the various function blocks. The active <Shift> button indicates that
there is another page (2/2):

The example below explains how to set parameters via the X*AP. E.g. if you press <Input>
all parameters for the input function block will be accessible:

Here you are at the input section of the first program. The <Shift> button
again toggles between two pages and gains access to the remaining parameters:

MENU

ESC

Audio Processor TV3 HD

10.110.96.15 1/2

Phase

Rotator

Input Fail

Over

Spectral

Signature

Equalizer Dynamics Voice

Over

De-Esser

MENU

ESC

Audio Processor TV3 HD

10.110.96.15 2/2

FM

Conditioner

Level

Magic

Output

MENU

ESC

Input Link On Mute Gain[dB] Mono 1/2

V2 Linked On off 0.0 Stereo

L/R

Program 1

MENU

ESC

EBU R128 Int LRA Time

[LUFS] [LU] hh:mm:ss

Input -19.3 6.4
Output -23.2 5.8 00:12:15

Short-Term Max TPL Momentary
[dBTP] Max

-19.7 -6.6 -12.0

-21.3 -5.0 -16.0

reset max Program 1

pause

reset

D*AP4

12

Here is another example for page 2/2 after pressing the <Shift> button:

The D*AP4 knows two independent programs:
See SYSTEM > Setup > Program Configuration = 2 x 2. You can select between both here.

You are able to link / unlink the respective processing blocks (see AUDIO PROCESSOR > Input):

The above example shows both channels of "Program 1" (default name) in Linked mode.
When you press hotkey #2 you are able to unlink both channels. Now you must simply push the rotary

encoder (or turn it counter clockwise / clockwise) to toggle between Linked and Unlinked condition.
In case of Unlinked, the display shows two independent parameter sets.
By pressing hotkey # 1 you can toggle the between the channel that is under control:

The examples above demonstrates the general way how to setup parameters of the
AUDIO PROCESSOR of the D*AP4 VAP:
* Select a parameter
* Change it by using of the Rotary Encoder.

- Push it to toggle states

- Turn it to increment / decrement values.

Important Note! Not all processing blocks can be linked / unlinked. Carefully compare the settings via the
web GUI if you are not certain about individual settings. In general the X*AP RM1 menus are a duplication of
the GUI settings. To access all parameters of a function block you must sometimes use the <Shift> button.
E.g. the equalizer has 5 pages for one program channel!

MENU

ESC

Input Delay Coarse [ms] Fine [samples] HPF [Hz] LPF [kHz] 2/2

1/2 0 0 OFF OFF

L/R

Program 1

MENU

ESC

Input Link On Mute Gain[dB] Mono 1/2

V2 Unlinked On off 0.0 Stereo

L/R

Linked

Program 1

MENU

ESC

Input Link On Mute Gain[dB] Mono 1/2
L Unlinked On off 0.0 Stereo
V2 On off

0.0

R

Program 1

D*AP4

13

Operating – menu structure of the X*AP RM1 remote panel – menu tree

Power Up Display – select a remote device
<MENU> opens X*AP RM1 remote panel IP setup menu.

Hotkey #
1 <Address> setup
2 <Netmask> setup
3 <Gateway> setup
4 < empty >
5 Device 1 setup IP & ON / OFF
6 Device 2 setup IP & ON / OFF
7 Device 3 setup IP & ON / OFF
8 Device 4 setup IP & ON / OFF

<ESC> back to power up display

<connect> will connect with that particular D*AP4 and opens the main operating display:

Hotkey #
1 <R128>
2 <ITU1770>
3 <Loudn Lim>
4 <D02>
5 <Limiter!>
6 <Nicerizer>
7 <[Panic 1>
8 <Panic 2]>

<ESC> will jump back to power up display

<MENU> opens upper operating display:

Hotkey #

1 <empty>
2 <Audio Processor> opens up the function block selection

Hotkey # Hotkey # (after pressing <Shift>)
1 <Input> <Level Magic>
2 <Phase Rotator> <FM Conditioner>
3 <Spectral Signature> <empty>
4 <Fail Over> <empty>
5 <De-Esser> <empty>
6 <Dynamics> <empty>
7 <Level Magic> <empty>
8 <Voice Over> <Output>

<ESC> back to operating display

3 <empty>
4 <EBU R 128> opens the loudness meter display

Hotkey #
1 <Input>
2 <Fail Over>
3 <Spectral Signature>
4 <Equalizer>
5 <Dynamics>
6 <Voice Over>
7 <Level Magic>
8 <Output>

<ESC> returns to the upper operating display
5 <empty>
6 <empty>
7 <empty>
8 <empty>

<ESC> returns to the main operating display

D*AP4

14

Setup GUI – connecting with the D*AP4

You must open a browser and enter the IP address of the D*AP4
into the URL field and press <Enter>. The browser will retrieve the necessary information and open up the
entrance page:

The entrance page is the AUDIO PROCESSOR pane with its sub pane Overview. If you are returning from
other pages or if you reload your browser content (by pressing <F5>) it may show a different page due to
caching of the browser.

In the top section you see several bar graph displays for signal levels as well as for gain reduction display of
several function blocks.

On the following pages we will go through the various panes to perform the basic setup of the device.
You must set up the synchronization source. You may also give the device a name, tell it its location and

define an administrative contact which may be used by the monitoring system of your house (e.g. via SNMP).
You must set up the installed interface module and finally set the signal routing.

You will find those settings under the SYSTEM link.

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15

Setup GUI – SYSTEM – System Status

The system status is a special link you can reach independently from where you are:

The System Status page provides a top level view of the various status information available for the device.

Device Status Provides the hardware status of the D*AP4.

Power 1 Status of the first power supply (left hand side of rear).
Power 2 Status of second power supply (to the right of the first power supply)
Temperature measured on the surface of the main PCB.
Sync Lock Turns red if the external sync source is lost or unstable.

Processing Status

Bypass Turns red if Bypass is activated.

Interface Status

AES I/O Turns red if an AES input that is internally in use (i.e you have routed it to

an input of a function block) has detected an error.

Interface 1 SDI I/O Turns red if a problem with the optional SD interface board has been

detected.

System Messages [current / history]

Displays a list of messages produced by the system controller.

System Log The system controller activities will be logged. This log information may be

downloaded from the device and sent to Junger Audio in case of a
problem: SYSTEM > Admin > Diagnostics > get diagnostics file

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16

Setup GUI – SYSTEM – Overview

The graphical overview shows the main building blocks of the device including the options installed,
in this example SDI interface placed into the interface 1 location (see rear view).

You may click on the boxes and the respective setup page will open. The navigation is based on URLs so
you may use the <Back> navigation button of the browser to return to this page.

Setup GUI – SYSTEM – Admin

D*AP4

17

This Device Input fields for information utilized by higher level services.

Serial Number The electronic serial number. It is printed on a label at the rear of the

device.

Name Give the device a meaningful name that may be used by name services

and SNMP management.

Location The place where the D*AP4 is located.
Admin / Contact e-mail address of a person in charge.

Graphical User Interface [Onair max / Preset max, Onair max / Preset min,

Onair min / Preset max, Last Used]

Defines the appearance of the parameter panes in the ON AIR vs.

the PRESETS area (which one will be visible).

Device Time Allows you to set the device clock. At the factory it is set

to UTC (Coordinated Universal Time).

Date If you click into the Date input field, a calendar tool:
Time If you click into the Time input field,

you will be able to
set the device time.

Authentication To prevent non-authorized people from

changing D*AP4 settings the
administrator may assign passwords for
either the admin and/or an operator. While the admin is allowed to set
everything, an operator is just allowed to load presets. Parameters will be
reset if the operator attempted to change it.

Enable [ON / OFF]
The administrator may turn authentication OFF.

Change Password for [admin / operator]
Select which password you will set / change

Password type in a password
Default passwords are: admin (for admin) and operator (for operator).

Repeat repeat that password

Important Note! The authentication may be enabled / disabled form the console interface as well

(see page 8 "1: Manage Password") via USB connection but also via Telnet! If you have higher security
demands you should turn the Telnet server off. Authentication will be turned off and passwords will be reset if
one initializes the device to factory default (see Reboot - page 19, INIT/RESET rear button - page 4).

If there was an authentication failure, the admin will be notified at
the next proper login about such conditions. The pop up appears
for each login that has failed. It shows the IP address of the device
that caused the authentication failure.

After a correct login the status "who" (e.g. admin)
and a <Log Out> button are available from the GUI:

Network IP address setup, see above:
getting started – IP setup of the D*AP4 – via web browser

IP Address A proper address for your network – default [10.110.xxx.yyy]
Netmask The net mask of your network – default [2555.255.0.0]
Gateway The optional gateway address – default [0.0.0.0]

D*AP4

18

Transmit Metering Data [OFF / ON]
metering data will be streamed via UDP protocol. In order not to receive

such data by external applications you may disable it.

Service Options

Maintenance Interface [OFF / ON]
via RPC For administrative use to enable communication with factory tools.

Telnet Server [ON / OFF]

Enables a telnet server to connect to the consol interface via

Telnet (IP port 21).

Diagnostics

<get diagnostics file> Pressing this soft button will start the assembly of a diagnostics file.

The file will be presented in XML format for download.
If you experience unexpected behavior of the device you may be asked by
the Junger service team to send such file by e-mail for analysis.

Setup GUI – SYSTEM – Setup

Program Configuration [2 x 2]
Shows the program configuration (2 times 2 channel). This is also

the default configuration of the audio processing blocks.

Program Labels Each of the two possible programs has a name that will be used

Program 1 as a reference for the display of parameters and their setup.
Program 2 You may edit the default names.

Current Sync Source Status shows the status of the 5 tier sync priority circuit

Source active sync source
Sample Rate measured sample rate
Show detailed status [ON / OFF]

If you enable the checkbox you will get this information:

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19

Sync Source Information

You will get detailed information about the measured rates of possible sync sources

System Clock

Sample Rate [Follow Input / 44.1 / 48 / 88.2 / 96]
Fallback Sample Rate [44.1 / 48 / 88.2 / 96]]
Fallback Video rate [25 / 29,97 / 30]

Sync Source Priority

Choice 1 – 4 [OFF / Internal / Sync-In WCLK / Sync-In AES /

Interface 1 [SDI I/O if fitted] / Sync-In Black Burst/Tri-Level]

Fallback on Sync Error: [Internal]
If the selected sync source is not available the next source will be

selected. If none of the pre selected sync source is not available,
the source will fall back to the internal clock oscillator

AES Select [Sync-In AES / Input AES 1/2 XLR / Input AES 1/2 BNC]
Select from which physical input the AES sync must be taken.

Accept SDI Generator [ON / OFF]
For rare application you may use the SDI generator (if an SDI I/O

interface is installed) as the sync source. In this case downstream
equipment must be synchronized to the D*AP4 LM.

See INTERFACES > SDI I/O interface > Setup for details.

Important note! It is not possible to gen lock the SDI generator. The generator will run on its own
internal 27MHz crystal clock.

Setup GUI – SYSTEM – Remote Access – X*AP Remote

You can control pre-settings of the EVENTS system via remote access from the X*AP remote panel or from a
mobile UI on a tablet, a smart phone or even via a browser session from any PC in the network.

To better understand the possibilities of these settings it is recommended to study the comprehensive
EVENTS system of the D*AP4.

D*AP4

20

Here you can define feature sets for an X*AP. At the moment it allows you to limit the access of a specific
X*AP to load profiles only or to gain full access.

Multiple X*AP remote panels may gain access to the D*AP4.
For each X*AP you may pre-set general functions:

Profiles will be set up in the EVENTS > Preset Events (Profiles) area.
They combine a number of presets of several processing blocks.

IP Address In the first line you define the access

policy for an "unknown" X*AP that
connects with this D*AP4 for the first
time. The other lines are used to pre­define features for known X*APs. When
connecting from an unknown X*AP, the
respective IP address will be inserted
automatically into the next empty line.

Setup GUI – SYSTEM – Remote Access – Mobile UI

For mobile UIs on tablets, smart phones or PCs you can select the features via its IP address:

IP Address When connecting from a mobile device

that is not pre-set, the respective IP

address will be automatically inserted.

Hotkeys [ON / OFF]

Turn it on if the UI should display the

hotkeys of the X*AP that is connected
with this D*AP4.

Actions [ON / OFF]
Turn it on if the UI should show actions to

trigger from the UI.

D*AP4

21

Setup GUI – SYSTEM - the preset concept in detail

The example above shows the preset concept of the D*AP4. It is a general feature of the device and you will
come across it in almost every area. For all relevant settings one set of ON AIR parameters and a practically
unlimited number of PRESETS are available. The count depends on the NV memory space left.
If you want to load parameters from a preset to the ON AIR area or save parameters from the ON AIR area
to a preset, you must press <load> or <save>:

A dialog opens to select the desired preset. When you press <ok> the selected action will be executed.
When you press the little pencil icon the preset name turns italic and you may edit it.

To generate a new preset offline, you must click into the preset name field below the PRESET headline:

The pull down offers "Add Preset". If you select this a new entry to the list will be
generated. Clicking on the small trash bin symbol will delete that preset.
You may change the default name "Preset x" by clicking the small pencil icon.
Now the default name becomes italic and you may edit that name.

If you have selected the new preset or one of the existing presets indicated by the name displayed at the
top, you may edit the parameter values.

Important Note! The presets of the D*AP4 are persistent by nature. You are working directly on the preset
memory, i.e. you need not worry about storing such presets. The D*AP4 does it for you.
On the other hand you must be aware that you are overwriting the actual preset settings! If you want to
keep original values (e.g. from a factory preset) you must simply copy the content of an existing one to the
clip board, add a new preset, name it differently and paste the clip board to it.

At the bottom of the PRESET part you find the soft buttons to <copy> the content of that preset to the clip
board or to <paste> the content of the clip board into an other preset which you have selected before
pasting.

You may also <export> or <import> the preset content to / from a file.

Setup GUI – SYSTEM – SNMP

This pane is meant for basic settings of the SNMP Agent of the device. If you are not familiar with the use of
SNMP protocol for system monitoring you should not enable the SNMP agent.

D*AP4

22

Setup GUI – SYSTEM – Backup / Restore

Here you can backup the complete device and restore parts or all of it .If you press <backup> the device
controller will collect all necessary data and assemble it to an XML file. Finally you will get a pop up message:

You must select:
<Save File>.
After pressing <OK>, the
system file dialog opens:

Select a folder
and alter that default file name
if needed.

Similar applies to the restore process. You must select the desired backup file which you want to restore and
check the necessary option(s) under "Restore Device Configuration".

D*AP4

23

Setup GUI – SYSTEM – Firmware Update

The files to update the D*AP4 will be available in ZIP format. You must unpack them to your PC in order to
use them for the update procedure. Here an example path name from the ZIP file:
junger_dap4_mei_firmware/base_unit_image

The folder /base_unit_image contains an image file for the D*AP4 core system in the format (example):
"rel_dap4-mei_3_0_2-25852.img". The other folders contain update files for components, like the optional
interface boards in the format: "rsdi150_v51.sdi" or for the X*AP RM1 remote panel in the format:
xap_125105.img.

To update the D*AP4,
you must
<Browse …> to
find the respective
firmware file (which
you have unzipped
before) and press
<start update>.
After finishing the
procedure the device
will automatically
reboot.

You may also update
the firmware of an
installed SDI
(Interface 1) or AES
I/O (Interface 0).

Finally you can see the
options of your device
which you have bought
a license for. When
you buy a license you
must provide the
license info file and in
return you will get a
new license file which
you must apply to the
device here.

Setup GUI – SYSTEM – Reboot

Restore Factory defaults Will clean up the parameter and preset memory and will initialize all

parameters to their factory default values and will reset passwords
and turn authentication off.

Overwrite Current IP You may exclude the current IP settings from this process
IP Configuration to keep your existing settings.

D*AP4

24

Setup GUI – INTERFACES – AES I/O

Status [green / red / yellow] The soft LED represents the status

Input Signal Status [OK / Fail]

Fail = no carrier, unlock, cranky [too much jitter]
Input Signal Type [Mute / PCM / Non PCM]

The Non PCM (e.g. Dolby encoded signal) status will be retrieved

from a logical combination of the Validity flag and the channel
status.

If one of the inputs is not assigned by the ROUTING section, its

status will not be incorporated into the System Status (see upper left
hand side above).

Settings

Enable Relay Bypass [ON / OFF]
For fail save operation bypass relays are provided to connect

AES IN / OUT in case of a power fail. One may enable such relay
manually here.

Input Sample Rate [ON / OFF]
Converter For asynchronous sources it is possible to turn a SRC on.

If an SRC is turned on and the input status becomes Non-PCM, the
SCR will be turned OFF automatically in order to maintain the

original data structure of the encoded bit stream (e.g. Dolby E).

Output Channel [Transparent / Prof PCM / Prof Non-PCM / Cons PCM /
Status Cons Non-PCM]
The channel status can either be transparent from the

input source of the D*AP4 or may be overwritten.

Input Source Select [BNC / XLR]

You must select here which input is in use.

(AES3id = BNC or AES3 = XLR).

D*AP4

25

Important note! The AES relay bypass circuit of the AES I/Os may be deactivated inside the
D*AP4. You must open the cover plate from the D*AP4 unit and locate the red jumpers shown in the

schematic below:
AES 1/2 on the main PCB AES 3/4 on interface slot 0

You must remove the jumpers to de-activate the AES I/O relay power fail circuit.

D*AP4

26

Set up GUI – INTERFACES – SDI I/O interface – Overview

If the D*AP4 is equipped with an optional SDI interface the following settings will be available.
This pane has five sub panes imbedded:

The overview pane shows all relevant information of that interface:

SDI Status [Locked / Unlocked]
Video Format [SD / HD /3G / N/A]
Video Standard [actual decoded standard (e.g. 1080i50) / No SDI Lock]
Audio De-Embedder [PCM / Dolby E / Dolby Digital / Dolby Digital Plus / MPEG-4 HE AAC /

Status MPEG-4 AAC / N/A]
VANC Metadata The respective soft LED will turn green to indicate the SDID found in the stream

De-Embedder Status while the angle brackets indicate the SDID selected in the de-embedder

set-up as a pre-selected stream.

Audio Embedder [AUTO – Embedding / AUTO – Replace Audio / OFF / Delete]
Status

Group 1 – 4 The embedding process distinguishes between 4 different modes for each

group independently:

Embedding – a new group will be built

Replace – the structure of the group from the input is kept and the audio

content is simply replaced

Delete – the group from the input is deleted
OFF – the embedder from that group is turned off

VANC Metadata [Enabled / Disabled & selected SDID#]
Embedder Status For details see SMPTE 2020-2 standard.

ARIB STD-B39 Meta information standard
Control Data Status

Status [Available / Not Available]
Audio Mode See ARIB Japanese standard "Structure of Inter-Stationary Control Data

Conveyed by Ancillary Data Packets"

http://www.arib.or.jp/english/html/overview/doc/2-STD-B39v1_2.pdf

D*AP4

27

Set up GUI – INTERFACES – SDI I/O interface – Local Routing

The SDI interface comes with a local routing matrix to shuffle audio signals from and to the system (device)
(i.e. to and from the central device router) and from and to the physical de-embedders / embedders.
The example below shows an example routing that sends signals 1:1 from the physical de-embedders
[INTERFACE – SDI IN G2 CH3 … SDI IN G4 CH4] to the physical embedders [SDI OUT G2 CH3 …
SDI OUT G4 CH4]. The signals from the physical de-embedders [SDI IN G1 CH1 … SDI IN G1 CH4] are
sent to the device router [DEM 1 … DEM4] while the device router outputs [SYSTEM – SDI Embedder
EMB 1 … EMB 6] are routed to the first 6 SDI channels [SDI OUT G1 CH1 … SDI OUT G2 CH2]:

You must use the scroll bar to navigate through the matrix. In the upper left hand corner you can select
between the ONAIR and the PRESETS view of the matrix. On the ON AIR page you will also see the
device signal labels (see ROUTING section further below for details).

Channel Linking [mono / stereo]
You can decide if the routing must be performed in mono or stereo mode

(where adjacent odd/even channels are routed at once).

You may select cross points by hovering with the mouse over the little squares and select / deselect cross
points with a left mouse button click.

Mouse over Color codes of cross points:

dark blue Possible new cross point.

orange You are about to reconnect a cross point.

grey Cross point is not allowed (i.e. routing will cause a loop and will not

therefore be performed) or dedicated input is not activated.

red You are about to disable a cross point.

.

An animated signal flow will help you when navigating through the matrix.

D*AP4

28

Set up GUI – INTERFACES – SDI I/O interface – Setup

SDI Bypass

SDI Relay Bypass Will deactivate the Bypass

Relay. It provides a shortcut from
SDI-IN to SDI-OUT1 and

disconnects the de-embedder
from the SDI input. This relay
also serves as a fail bypass if
the power is off. This feature
maintains the SDI signal for
downstream equipment.

SDI Embedder Will pass the embedded audio
Bypass data from the de-embedder to the

embedder 1:1. This function
preserves the original
ancillary data structure.

Video Delay

Video Delay [0 … 15]
(frames) For compensation of any kind of

audio processing delay within the
chain of devices you may use a
Video Delay. Position “0” turns
off the delay function.

3G SDI Mode

Level B Stream A 3G-SDI signal may have two HD sub streams (e.g. for 3-D TV),
Select AKN as 3G-B standard select between stream 1 or 2 for embedded

audio. See SMPTE 425M for details.

Test Pattern Generator The interface offers a test generator to either check downstream

connections during installation or for use in case of an input fail but you
may also use it to move 16 independent audio channels over a single
coax cable from point to point.

Mode [OFF / AUTO (Input Loss) / Always ON]
Video Format [Last valid / one of the defined SD / HD 3G formats (see specs)]

[Color Bars / Black Frame]

Set up GUI – INTERFACES – SDI I/O interface – De-Embedder

Audio Sync Source The HD SDI standard allows
(Async HD) for asynchronous audio. This is

critical if you have decided to
synchronize the device on such
signal. Here you find a solution.
You may either use the
embedded word clock or the SDI
carrier itself as a reference.

Embedded Word [Auto / De-Embedder CH1
Clock (DEM 1) / OFF]
OFF = synchronized to the

SDI carrier.

Auto = In case of asynchronous audio it is synchronized automatically

to the SDI carrier.

DEM1= From de-embedder group 1 channel 1.

D*AP4

29

Set up GUI – INTERFACES – SDI I/O interface – Embedder

Audio Embedder Here you set the general

functions of the embedder

Delete Existing Data [ALL – New HANC Structure

/ OFF]

Group 1 – 4 Mode [OFF / AUTO – Embedding

/ AUTO – Replace Audio

/ Delete]
See SDI I/O Interface > Overview
for details.

AES Channel [Transparent / Professional]
Status If Professional these values are

used:

Format: Professional

Audio Mode: [Audio / Non

Audio]
Emphasis: None
Freq. Mode: Locked
Sample Freq.: 48kHz
Channel Mode: Not Indicated
User Bits: None
Auxiliary Bits: 24Bit
Audio Word
Length: Not indicated

Important note! If you generate a new AES channel
status the Audio Mode will be automatically set to Non
Audio (AKA "other") for both channels, if for example an
adjacent pair (1/2, 3/4 …..) carries a Dolby E stream.

VANC Metadata The embedder can insert one
Embedder Dolby metadata stream into the

Vertical Ancillary Data

Enable [ON / OFF]

Delete Existing [AII / OFF]
Metadata

Stream Select [SDID 1 … SDID 9]
(SDID)

Video Line [Auto / 9 … 44]

The line number depends on the actual video standard how many VANC
lines are available for data insertion.

Embedder Audio Each embedder signal may be delayed independently. This may be useful
Delay for Lips Sync alignment if a video delay is used.

Important Note! You must take care that for Dolby encoded signals the adjacent pairs are set to the same

delay values in order not to destroy the data structure.

SDI OUT G1 CH1 (ms) [0.0000 … 340.000]
to
SDI OUT G4 CH16 (ms) [0.0000 … 340.000]

D*AP4

30

Set up GUI – INTERFACES – MADI Interface – Status / Setup

The implementation of MADI for the D*AP4 is based on the option module O_DAP_MB (BNC) or
O_DAP_MO_MM (MADI optical multi mode fiber) or O_DAP_MO_SM (MADI optical single mode fiber).
Since the V*AP is a 4 channel processing device not all 64 MADI channels are available for device I/O.
The first 8 channels are available via the MADI local router to the device router.
They appear at the device router pane as MDIN 1 .. 8 and MDOUT 1 … 8.
These channels can be routed to and from any of the local routing sources MADIRX 1 … 64
and MADITX 1 … 64 respectively.

MADI Receiver

Status [Locked / Locked-Async / Error]
The timing of the audio decoding is locked to the MADI clock. If the

internal timing of the D*AP4 is different "Locked-Async" is displayed.

Receiver Sample Rate [44.1 / 32 / 48 / 88.2 / 96kHz / Unknown]
The measured sample rate from the received MADI stream.

Receiver Channel Count [32 / 56 / 64]
Depends on the upstream MADI transmitter settings.

Input Channel Status (MDIN) [Transparent / Professional]
One may overwrite the input channel status by a set of professional

ones.

Channel Mapping @ 96 kHz [Normal]

D*AP4

31

MADI Transmitter

Transmitter Channel Count [64 (32) / 56 (28)]
Depends on the internal sample rate and the desired number of

MADI channels. The numbers in brackets are valid for 96kHz.

Transmitter Channel Status [Transparent / Professional]
Channel Mapping @ 96 kHz [Normal]

Set up GUI – INTERFACES – MADI Interface – Local Routing

Below are some excerpts from the local routing pane. Single channels from or to the D*AP may be
connected with the MADI transmitter or MADI receiver respectively.
The example below shows the first 8 MADI channels from the receiver (MADI RX 1 … MADI RX 8)
connected with the device inputs SYSTEM MADI INPUT (MDIN 1 … MDIN 8):

The Local Routing pane can also be used to route MADI signals from the receiver directly to the
transmitter and vice versa:

D*AP4

32

You can also assign device outputs (MAOUT 1 … MDOUT 8) to MADI transmitter channels
(MADITX 1 … MADITX 8). For better visibility the matrix has been divided by cutting off the middle part:

----------------------------------------------------------------------------------------------------------------------

Set up GUI – INTERFACES – Dante I/O Interface – Status

The DANTE interface connects a D*AP4 to an audio over IP (AoIP) network. Junger Audio has
committed itself to the quasi industry standard DANTE developed by the company Audinate.

"Based on industry standards, Audinate created Dante, an uncompressed, multi-channel digital media
networking technology, with near-zero latency and synchronization … One cable does it all. Dante does
away with heavy, expensive analog or multicore cabling, replacing it with low-cost, easily-available
CAT5e, CAT6, or fiber optic cable for a simple, lightweight, and economical solution. Dante integrates
media and control for your entire system over a single, standard IP network."

The network infrastructure for AoIP must be able to handle the IP multicast. The recommendation is to
separate the control network from the audio network.

For details pls. refer to the Audinate web-site: https://www.audinate.com. Here you will find many useful
application videos and FAQs.

To configure such an audio network you need the DanteController software. You can download it from
the Audinate web site. People who want to interface a PC or MAC to such an audio network can use
the VirtualSoundcard software from Audinate. It provides standard audio drivers to connect with
common sound tools.

We highly recommend to read the Audinate documents to understand how to set-up and operate
a real-time AoIP network.

Looking at the rear panel the RJ45 connector on the left is the primary port while the second connector
acts either as a redundant or as a switch port. Both RJ45s have built in LEDs. The left one shows
network activities (flashing green) while the right one indicates the interface speed,
with green=1Gbit/s and off=100MBit/s.

D*AP4

33

Below is the Status page of the DANTE interface board:

The parameters you see here must be set via the DanteController software.

Dante

Device Name The name you gave the interface board via the DanteController.
Primary Network Status [Offline / Connected + bandwidth]
Secondary Network Status [Offline / Connected + bandwidth]

Clock Synchronization

Mute Status [OK (Unmuted) / Muted]
Sync Source [Dante Network / DA*P is Master]

Here you define the reference clock for this DANTE module.

Important Note! If this parameter is set to "Dante Network", the D*AP must be synchronized to the same

clock as the network clock master (whoever it is). It must be set to "Dante Network" if this module is to
become the "Preferred Master" of the network.

Sync Status [Unlocked / Locked / Locked-Async]
The sync source for the DANTE interface is the DANTE network.

If no network cable is connected the interface is "Unlocked". If it is

connected to a network it will be "Locked". If the D*AP4 is set to
synchronize to other than the DANTE interface it will show
"Locked-Async".

Preferred Master [No / Yes]
The Dante algorithm automatically looks for the best clock master

inside the network but one may force a DANTE module to become
the clock master.

Network Audio Sample Rate [44.1kHz / 48kHz / 88.2kHz / 96kHz]
Depending on the A*P device type the sample rate is limited to the

device specification.

Device Latency Setting [1000 µs]
You can allow for a certain transmission latency if you face network

problems of any kind.

D*AP4

34

Set up GUI – INTERFACES – Dante I/O Interface – Inputs

The DanteController software gives you an overview of all members of such a DANTE network.
You can assign channel labels for the inputs (from the network to the device interface). Those labels will
automatically appear in the D*AP4 and will be displayed there.

Here is a glimpse on the GUI of the DanteController:

As an example you see here a
"DAP4-LM" (name given by the Dante
Controller) that has assigned the labels
DAP-4 2/1 … 2/8 for both the inputs and
the outputs.

Beside a few more devices on that
network, we see the unfolded outputs
of a DanteVirtualSoundcard (VSC)
named "VSC-MARTIN" on the upper
right hand side.

The top horizontal area shows the
transmitters while the receivers are
shown vertically on the left hand side.

The outputs PCM 0 and PCM 1 from the
VCS are assigned to the D*AP4 inputs
DAP4-LM 2/1 and 2/2 while two outputs
from the "DAP4-LM" are assigned to the
VSC inputs "01" and "02".

We see the labels assigned by the DanteController software in the "Channel" column:

Inputs Eight inputs are pre-defined for the DANTE interface installed in a

D*AP4. They are organized in pairs and the input status is shown by

soft LEDs (green = PCM audio / yellow = non audio/ grey no audio).

D*AP4

35

Channel The labels assigned to that channel by the DanteController
Connected The source of the audio signal.
Status [No Subscription / Subcription Unresolved / Wait / Naming Problem /

Loopback / Idle / Subscription in Progress / Connected (Unicast) /
Connected (Multicast) / Manual Config / Format Problem /
QoS Problem / Latency Problem / Clock Domain Problem /
Link Down / Fail / Unknown]

The DANTE module provides very detailed status information. In

regular operation one will not see much of it.

Set up GUI – INTERFACES – Dante I/O Interface – Outputs

Outputs The signals from the DANTE

board to the network. They will
also appear in the device

ROUTING section.
Channel Numeric count of the channels.
Channel Up to 16 labels can be

Label configured for each stream from

the interface to the network. This

allows configuring multi layer

routing.

Set up GUI – INTERFACES – Dante I/O Interface – Network

Dante Redundancy The DANTE interface allows redundant network operation.

Pls. refer to manufacturer's documentations of your Ethernet
equipment on supported switching configuration and redundant
operation.

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36

Mode [Switched / Redundant]

Redundant – The interface will duplicate the audio traffic to both

Ethernet ports.
Switched – The second port behaves like a standard switch port
allowing daisy-chaining through the interface. I.e. IP

configuration is only available for Redundant mode.

Important Note! When set to switched mode, do not connect both ports to the same network
(same Ethernet switch) if it does not support STP (Spanning Tree Protocol). This is the case for most of
the off-the-shelf (office) switches. Doing so will cause a race condition where IP packets are circling around
from the external switch to the second Dante (switch) port and back via the first port. This will tear down
your network and may create a bunch of new "friends" in your facility.

Primary Address Setup Setup of the primary network interface

Network Status [Offline / Connected + bandwidth]
DHCP – Automatic IP Config. [OFF / ON]
IP-Address
Netmask
DNS Server
Gateway
MAC Address

Secondary Address Setup Setup of the secondary network interface

Network Status [Offline / Connected + bandwidth]
DHCP – Automatic IP Config. [OFF / ON]
IP-Address
Netmask
DNS Server
Gateway
MAC Address [unknown / address]

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37

Set up GUI – INTERFACES – 4 Ch ANALOG I/O Interface

An additional analog interface can be installed in the Interface slot.
It provides 4 additional analog line inputs and outputs on a 25pin D-Sub connector:

Enable Relay Bypass [ON / OFF]
(All Channels) Power fail bypass relay that may be activated from the GUI

Analog Input Calibration [0 … 15.0 … 24.0]
(dBu)

(level for digital 0dBFS)

A/D conversion parameter. It defines the analog input level in dBu to
reach a digital full scale signal.

Analog Output Calibration [0 … 15.0 … 24]
(dBu)

(level for digital 0dBFS)

D/A conversion parameter. It defines the analog output level in dBU
for a digital full scale signal.

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38

Set up GUI – INTERFACES – AES Interface – Status / Setup

An additional AES3 interface can be installed in the Interface slot.
It provides 4 additional AES3 inputs and outputs on a 25pin D-Sub connector:

Status

Input Signal Status green [OK] / red [Fail]
Input Signal Type [Mute / PCM / Non PCM]}

Settings

Enable Relay Bypass [ON / OFF]
(All Channels) Power fail bypass relay that may be activated from the GUI

Input Sample Rate [ON / OFF]
Converter

Output Channel Status [Transparent / Prof PCM / Prof Non-PCM / Cons PCM /

Cons Non-PCM]

Controls the channel status for the AES output. It provides a set of

useful channel status information (e.g. to prevent non audio signals
to be fed to speakers).

Important note! The AES relay bypass circuit of the I/Os is activated on the option board. It is possible to
deactivate it if necessary. You must open the cover plate from the D*AP4 unit and locate the jumper
shown in the schematic below. You must remove the jumpers to de-activate the AES I/O relay
power fail circuit.

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39

Setup GUI – ROUTING

This is the core of the D*AP4 as it defines the audio signal flow inside the device. It appears differently
depending on the type of optional interface boards installed.

Example without an interface board: example for an SDI interface board:

Each functional block of the device has a source label and a destination label. Additional blue signal
labels give an indication of the type of signal that is expected or issued by the respective function block
or I/O interface (e.g. 1L/1R for AES or 2L/2R for DSP 3/4 and so forth).

Top / horizontal (column headlines) = signal destinations

DSP [DSP 1 … DSP 4]
The DSP inputs carrying the signal type labels 1L, 1R, 2L, 2R

of the two programs 1/2 (see AUDIO PROCESSOR > Overview).

DELAY [DELAY 1 … 4]
The four inputs of the extra delay lines of the D*AP4

AES [AES 1 … 4]
The AES outputs of the device.

Left hand / vertical (line headlines) = signal sources

DSP [DSP 1 … DSP4]
The DSP outputs carrying the signal type labels 1L, 1R, 2L, 2R

DELAY [DELAY 1 … 4]
The four outputs of the extra delay lines of the D*AP4

AES [AES 1 / AES2]

The AES inputs of the D*AP4.

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40

The routing example on the left hand side shows that the AES inputs 1,2 are connected to the inputs
DSP 1,2 (label 1L/1R) of the DSP. The outputs DSP 1,2 (label 1L/1R) are connected with the inputs
DELAY 1,2 and with the outputs AES 1,2 (label L, R). The outputs DELAY 1,2 finally are connected with
the outputs AES 3,4 (label L,R).

Important Note! If a different optional interface board is installed the matrix will be expanded by the
pre-defined number of I/Os with their labels:

SDI [O_DAP_SDI_a] DEM 1 … DEM 16 and EMB 1… EMB 16
MADI [O_DAP_MB_a / MDIN 1 … MDIN 8 and MDOUT 1 … MDOUT 8

O_MO_MM_a / _MS_a]

DANTE [O_DAP_DANTE_a] DTIN 1 ... DTIN 8 and DTOUT 1 ... DTOUT 8
4 Ch ANALOG I/O [O_DAP_ADDA_a] ANL 1 … ANL 4 and ANL 1 … ANL 4
AES [O_DAP_AES_a] AES 1 … AES 8 and AES 1 … AES 8

Setup GUI – AUDIO PROCESSOR - Overview

The overview shows the actual signal flow and the audio processor blocks, rendered by the DSPs.

The processing blocks in use, which may be activated from their individual setup panes, will be indicated in
green. I.e. blocks shown in grey are not activated by the user.

To navigate through the various processing blocks you may either click on the graphical block or use the
tabs provided in the navigation bars below the bar graph displays.

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41

Setup GUI – AUDIO PROCESSOR - Setup

Loudness Mode

In order to meet the regulations of
regions or countries you must select the
loudness control mode here.
Beside of the weighing curves several
measurement duration and loudness
ranges have bee defined. Some
regulations are based on the same
measurement (e.g. ITU BS.1770-2) but
defined in a different regional norm.
You must check with your local authority
for correct settings if you must comply
with regulations.

Processing Bypass [ON / OFF]
You may turn the bypass ON/OFF from

here by activating the check box.

The bypass functionality may be

configured at the EVENTS >Actions
pane where the link will direct you to.

Latency Management In a latency critical environment it might

be desirable to have the lowest possible
latency. So it is useful to actually bypass
a process that is not in use. In normal
operation, switching audio processing
modules on and off does not result in a
change of latency and thus does not
cause audible glitches or clicks.

Program 1 Display of the actual latency
Program 2 Display of the actual latency
Latency Mode [Minimal / Compensated]

"horizontal" compensation for one

program. Disabled audio processing

blocks are taken out of the processing
chain and are no longer causing a delay. However switching blocks on or off can cause clicks and
glitches, even in unaffected channels, as the latency compensation is recalculated.

Bit Transparency For non audio signals which may be appear at the input of a program

chain permanently or time by time you can select the behavior here.

1L/1R | 1L/1R [OFF / ON / AUTO]
2L72R | 2L/2R [OFF / ON / AUTO]

You may force the DSP to pass through the audio stream untouched

in case there is encoded audio present. The AUTO mode is triggered
by the AES channel status.

System Latency [ms]:

44.100kHz 48.000kHz 88.200kHz 96.000kHz
Base Latency
AES IN to AES OUT 4.26

4.08

3.13

3.05
Additional Latencies
Spectral Signature 2,9

2,66

2,9

2,66

Sample Rate Converter 0,21

0,21

0,21

0,21

Base latency consists of 1 ms Limiter Look Ahead Time and all system inherent
processing and input/output delays.
Activating sample rate converters will add additional latency (< 1ms).

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42

Setup GUI – AUDIO PROCESSOR – Input – Inputs

You may set the input conditions for both program channels (1L/1R) and (2L/2R) here:

Link [Unlinked, Linked]

For stereo operation you may link the setup parameters

Input [Enable / Disable]

Enables or disables the input section

Mute [ON / OFF]
Input Gain (dB) [-80.0 … 0.0 … 20.0]
Mono [L/R Stereo / L+R Mono / L/L Mono / R/R Mono]
Input HPF (Hz) [OFF / 20 / 40 / 80 / 120]
Input LPF (kHz) [OFF / 15 / 20 / 22]
Input Delay Coarse(ms) [0.0 … 2000.0]
Input Delay Fine (samples) [0 … 2000]

Setup GUI – AUDIO PROCESSOR – Input – Phase Rotator

When working with human voice, one regularly
experiences issues with imbalanced waveforms.
Imbalanced in this context means that the
positive or negative half of the alternating signal
carries more power than the other.
The problematic result of this type of imbalance
is unnecessarily applied dynamics processing
(e.g. signal limiting) or loss of headroom.

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43

The Phase Rotator detects this type of imbalance
and automatically applies a complex
phase wrapping filter to restore symmetry.

Please keep in mind that this system is not
effective against DC offset. In this case
a high pass filter should be applied instead.

Each program has an independent Phase Rotator.
Link [Unlinked / Linked]

For stereo you may link the setup parameters of both voice channels.

Phase Rotator [ON / OFF]

Mode [OFF / ON / AUTO]

OFF
System is inactive

ON
System always applies phase wrapping

AUTO
Unbalanced waveforms are automatically detected and phase

wrapping is applied only if necessary.

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44

Setup GUI – AUDIO PROCESSOR – Fail Over

Fail Over The D*AP4 offers a fail over circuit

for automatic operation. It will
switch to 2L/R in case 1L/1R fails.

MODE [FIX 1L/1R / FIX 2L/2R / AUTO]
In AUTO mode the switch over

happens in case of an input failure.

Dual Mono [OFF / AUTO]
A detector looks after the input signal.

If it is a left [L] or right [R] only it
converts that signal either to
[L/L] or [R/R].

Fail Threshold (dBFS) [-80 … -60 … -40]
RMS weighted input level for fail

detection.

Fail Wait (s) [1.5 … 10.0]
Elapsed time after fail detection

until the switch over will happen.

Fail Return (s) [0.0 … 10.0]
Elapsed time after detection of a

proper input signal until the switch
back to the program input.

Side Chain Filter [OFF / ON]
A high pass filter (300Hz) and a low

pass filter (3000Hz) is applied to the
detector side chain (not the audio
path) to prevent hum and noise
from blocking fail over switching.

Setup GUI – AUDIO PROCESSOR – De-Esser

Link [Unlinked, Linked]
For stereo operation you may link

the setup parameters for both
voice channels.

De-Esser [ON / OFF]

Frequency (Hz) [1000 … 3000 … 16000]
Range (dB) [-20.0 … 0.0]
Filter Type [Peak / High Shelf]
Q [0.4 … 1.0 … 8.0]
Side Chain [OFF / active]

Listen

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45

Setup GUI – AUDIO PROCESSOR – Filter – Spectral Signature

Spectral Signature is a highly sophisticated dynamic multiband filter to boost (or reduce) spectral parts
of the processed audio signal dynamically. It punches through a reference spectrum to the processed
audio signal.

Program / Section [Program1 / Program2 / Preset]
Selects the program for which Spectral Signature will be displayed.

Since this view does not allow the display of a preset page side by side

as usual one must select "Preset" to get to the preset editor.

Channel [1L/1R, 2L/2R, 1L, 1R, 2L, 2R]
Depending on the program selected and the link status (see below

lower graph) the channel under control will be displayed here.

Enable [ON / OFF]
Enables / disables Spectral Signature for the selected program.

Please note: For convenient operation, this function is also available
(in the Expert section, see below) within the web interface.

Graph (upper) The upper graph is a metering window, illustrating the difference

between the input (dotted line) and the output (solid line) signal.
This window can be used in two different ways:

Input / Output Spectrum [alternative selection]
Absolute Gate Threshold The spectrum is shown in absolute values (related to digital full scale).

This is very helpful to get an impression of the frequency response of
the signal. Also, in this mode the absolute gate threshold can be set
within the graph by grabbing and dragging the lower transparent white
area. The gate LED row at the bottom indicates whether the absolute or
relative gate of the band is closed (yellow) or open (green). A gray LED
indicates that the band is switched out.

Normalized Gain [alternative selection]
This is very useful to see the actual amount of amplification or

attenuation within each band. In this setting the Absolute Gate
Threshold cannot be set.

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46

Link Threshold settings [ON / OFF]
The absolute gate threshold can be set individually for every single

band. However, in most cases this is not necessary. Checking this box
links all gate thresholds together. This connection is absolute,
differences between bands will be overwritten. Please note: For
convenient operation, this function is also available
(in the Expert section, see below) within the web interface.

Graph (lower) It may show the reference curve for all programs by a color code.
Above we see an additional pink line that represents Program 2.

It may be disabled by the "Graph Permanently Visible" switch below the
graph display.

Signature / Max Gain (dB) [0 … 12]
Spectral Signature does not work with an absolute level reference. Its

frequency response is based on level differences between bands only.
Thus a signature is only represented on a relative graph showing the
level positions related to the neighboring bands. In consequence,
having a straight line does not mean Spectral Signature is not doing
anything or is in a 'neutral' status. A straight line would cause Spectral
Signature to modify the input signal towards the frequency response of
white noise which is, in most cases, not desirable.

On mouse over you can read the actual setting of a particular

band (BAND 5 above).

To change a band, just grab and drag the corresponding sphere. It is

recommended to use the 'Learn' function first (see below). Every single
band can have an individual max gain value that limits the maximum
amplification and attenuation. To set this value, grab and drag the
smaller sphere on the bottom of the main sphere. The max gain setting
is indicated by the size of the main sphere. The lowest and highest
values are indicated by a flashing edge.

Link Max Gain Settings [ON / OFF]
Instead of dialing in all max gain settings individually per band, this link

function is a handy tool for basic setup. This connection is absolute,
differences between bands will be overwritten.

Enable [ON / OFF]
Checkboxes on the bottom of the lower graph can be used to bypass

single bands from processing.

Capture Signature Spectral Signature is a dynamic filter tool to even out differences

between signals of different source or condition. It does not have an
absolute reference. Only if the incoming signals frequency response
equals the reference response (signature), will Spectral Signature
operate in a neutral manner. To create a reference spectrum, which is
called 'Signature', start your reference signal and hit the 'Learn' button.
After a couple of seconds (see below), the Signature is updated. If the
input signal does not change, the upper graph shows that the input and
output curves are alike. If the incoming signal spectrum changes,
Spectral Signature starts to even out the tonal differences, without
destroying the original structure.

<learn> [manual / 1s … 30s / 1min]

Determines the time over which the input frequency response is

integrated to create the signature. A shorter time is sufficient for single
channel signals, where the content remains stable over time (for
example a presenter microphone). Longer time settings are appropriate
for mixed content or buses (for example a studio output).

Graph Permanently [ON / OFF]
Visible The color code of the columns will change depending on the program

selected for gain change (upper) display.

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47

White color represents the selected program while orange represents

the second program. If you select program 2 for example it becomes
white while Program 1 becomes light green:

Graph Permanently The color code of the column
Visible headers will change

depending on the program
selected for gain change (see
upper display). White color
represents the selected
program. If you select program
2 for example it becomes
white while Program 1 is
colored light green.

Link [Unlinked, Linked]
For stereo operation you may link the setup parameters

Spectral Signature [ON / OFF]
Adaption Speed [0 / 2 Mid / 3 / 4 Fast]

This parameter affects the time taken for the bands to reach their

target values. Fast settings even out differences between sources,
but can lead to audible transitions.

They are well suited for single channel signals, for example to even

out sound differences due to movement in front of a microphone.
Slower settings remain unobtrusive, but cannot bring down
differences very quickly. They are suitable for mixed content or buses
with varying content. The overall spectrum remains well balanced
without drastic sonic changes.

Adaption Grade / [Soft / Mid / Hard]
Response In order to achieve a stable and natural behavior, the intensity of the

gain change needs to process according to a response curve. This
curve is defined by a ratio. A high ratio means that a difference of 5
dB results in a gain change of almost the same amount. A low ratio
means that the actual gain applied is lower. A ratio of 2:1 would bring
the amplification up to 2.5dB in this example. The max gain value is
applied after the ratio calculation. As these ratios are not static, they
have been combined into three preset responses. The average ratio
increases from 'soft' to 'hard'.

Relative Gate [-10 …. -14 … -20 / OFF]
Threshold (dB) To prevent a band from amplifying noise (especially hum), a relative

gate can be set. If the energy within one band is lower than this gate,
no amplification will take place. This is especially useful, when mixed
content with highly varying frequency response is processed (for
example a radio station output with alternating presenter voice and
music).

Max Loudness [0.0 … 1.5 … 12.0]
Boost (dB) The human hearing is not a linear system. When levels get low,

humans perceive less bass within the signal and the sound becomes
subjectively thin and tiny. This phenomenon is well known and
documented as the 'equal loudness contours'. By setting up Max
Loudness Boost the system compensates for this difficulty of the
human perception and raises the bass bands as levels decrease.
Our intelligent system compensates the frequency response
independently from the absolute playback level. Max Loudness Boost
is the amount of gain that the system is allowed to build up, not a
static gain value. We suggest to experiment with a start setting of 4.

D*AP4

48

Expert [ON / OFF]
All parameters within the Expert section are duplicated in the

Signature and Spectrum graphs. They can be used to enter
numerical values directly. Changes are reflected in the graphs and
likewise in reverse.

Link Max Gain [ON / OFF]
Settings

Link Threshold [ON / OFF]
Settings

Band 1 [ON / OFF]

Normalized [-40.0 … 0 … 40.0]
Signature level

Max Gain [0.0 … 3.0 … 12.0
Absolute Gate [-84.0 … -80.0 … 0.0]

Threshold

Band 2 … 16 similar parameters as Band 1

Setup GUI – AUDIO PROCESSOR – Filter – Equalizer

The graphical EQ offers 5 bands. The characteristic of each band can be setup either left hand side of
the graph or alternatively for each band further below.

Program [Program1 / Program2 / Preset]
Selects the source for which the curve will be displayed.

This selection depends on the Voice Channel Mode
(see SYSTEM > Setup) and whether or not the channels are linked
for stereo operation.

Channel [1L/1R, 2L/2R, 1L, 1R, 2L, 2R]
Depending on the program selected and the link status (see below

graph) the channel under control will be displayed here.

Enable [On / OFF]
Band 1 … 5 [OFF / Peak 1 / Peak 2 / Lo Shelf / Hi Shelf / Lo Cut / Hi Cut]

Filter characteristic will be selected by this pop-up:

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49

Graph [ON / OFF]
Permanently The color code of the column
Visisble headerswill change depending on

the program selected for display
(see upper) display.

White color represents the

selected program. If you select
program 1 for example it
becomes white while
Program 1 is colored orange.

Link [Unlinked, Linked]
For stereo operation you may link

the setup parameters

Equalizer [ON / OFF]
Band 1

Filter Type [OFF / Peak 1 / Peak 2 / Lo Shelf / Hi Shelf / Lo Cut / Hi Cut]
Frequency (Hz) [20 … 20000]
Gain (dB) [-20.0 … 20.0]
Q [0.4 … 4.0]
Band 2 … 5 similar parameters as Band 1

The EQs offer two different peak modes:

Peak 1: The bell curves of the Peak 1 filter features constant quality (Q) over gain.

Q is defined at -3dB below peak. It does not change when altering gain.

Peak2: The bell curves of the Peak 2 filter also features constant quality (Q) over gain.

But Q is defined at 50 % of gain. Subjectively the bell curve becomes sharper when
increasing gain, but this is only true for the lower 6-8dB of gain.

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50

Setup GUI – AUDIO PROCESSOR – Dynamics

Link [Unlinked, Linked]

For mono operation you may

unlink the setup parameters

(see Program 2 for example).

Expander [ON / OFF]

Threshold (dB) [-60.0 … -20.0]
Range (dB) [0.0 … 10.0 … 20.0 / Gate]
Release Mode [0 … 4 … 9]

Compressor [ON / OFF]

Reference [-40 … -18 … 0]
Level (dBFS)

Range (dB) [0 … 8 … 20]
Ratio [1.1 … 2.0 … 4.0]]
Processing [Live / Speech / Pop / Uni /

Classic]

Expert [ON / OFF]

Clear Processing <clear>
History pressing the soft button will clear

the processing history of the
dynamics control loops.

The parameters of the dynamic section are explained below in reference to the curves:

Jünger Audio Expander

Threshold Signals below threshold are processed,
signals above pass unaffected. Please be
aware that this is only true in Gate mode,
as the Expander mode features soft knee
characteristics.

Range Maximum reduction range. Its value

determines the maximum reduction of the
input signal. This parameter is
sometimes called 'floor', but differs in
terminology. A floor level is defined as an
absolute value in dBFS, no matter where
the threshold is set. Range defines the
relative range of reduction in dB below
threshold and is thus independent from
absolute values. When it is set to
'Gate' the input signal is muted.

Release The release mode controls the timing of
Mode the closing of the Gate/Expander.

Release mode 0 is very fast and even
short gaps or signal intermissions lead to
gain reduction. On the other end of the
scale, 9 is a very slow mode with a
relaxed handling of gaps and low level
periods. All modes feature the same
super fast opening when the signal
returns above threshold.

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51

output

input

reference

level

compression ratios

range

range

Jünger Audio – Upward Compressor

Reference Not to be confused with threshold, this
Level parameter defines the turning point of the
(dBFS) response curve from upward to

downward compression (see picture).
When set to 0dBFS, the signal is
amplified according to the ratio and range
settings.

Range (dB) This defines the range over which

dynamic compression is applied as
defined by the ratio setting. Signals
outside of this range are still reduced or
amplified but not altered in their dynamic
structure.

Ratio Determines the amount of gain reduction

by a selectable ratio. Although the same
in mathematical terms, understanding is
easier when differentiating between
upward and downward compression:

Processing The timing characteristics of the compressor are generated adaptively

according to the incoming signal structure. The overall timing can be
set up from fast and responsive settings (lower numbers) to relaxed
settings (higher numbers) without detailed access to the actual micro
timings. The names behind some of the numbers may help to easily
find adequate values to your content.

Expert [ON / OFF]

Clear Processing History This is a triggered action that resets the dynamic processing without

any release time. Imagine it as a short circuit to the timing circuits of
an analog dynamic processor which discharges the whole system and
immediately returns the dynamic gain to its neutral state. This function
is useful to reset the process when switching programs (e.g. from
movie to commercial breaks).

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52

Setup GUI – AUDIO PROCESSOR – Voice Over

The voice over section allows for manual (mixing) / automatic (ducking) of a voice channel over the
program feed. The dynamic schematic in the top of the pane shows the actual signal flow:

Voice Over

Mode [OFF / Always ON / AUTO]

Defines the operating mode of the voice over block. AUTO will detect

the signal in the voice channel and will automatically perform the voice
over (ducking).

Manual Activation [Enable / Disable]
Mostly used for testing

Signal Path [Pre Leveler / Post Leveler]

See AUDIO PROCESSOR > Overview for the actual location of the

circuit in the signal path.

Attenuation (dB) [-30 … -10 … 0]

Timing

Fade In Time (ms) [10 / 20 … 1000]
Hold Time (ms) [0.0 … 2.0 … 10.0]
Fade Out Time (ms) [0.0 … 2.0 … 10.0]

Voice Over Source

Source Format [Stereo / Mono LL / Mono RR / Mono L+R]
Source Gin (dB) [-20 … 0 … 20]
Threshold (dBFS) [-60 … -50 … -40]

Sets the threshold for detection in AUTO mode.

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53

Setup GUI – AUDIO PROCESSOR – Level Magic

This function block is used for loudness control of the program path.

Loudness [display of the setting from
Control Mode AUDIO PROCESSOR >

Setup > Loudness Mode]

Link [unlinked / linked]
defines the coupling of the

control circuits

Leveler [ON / OFF]

Processing Profile [Live / Speech / Pop / Uni /
Classic]

Loudness Target Level [0 … -50dBFS]
for different modes ITU [0 … -50LKFS]

EBU [0 … -50LUFS]
Time (s/min/h) [10, 20, 40 / 1, 2, 5, 10, 20,

40 / 1, 2]

Max Gain (dB) [0 … 10 … 40]
Freeze Level (dBFS) [-60 … -50 … -20]

Transient Processor

Max Gain (dB) [0 … 10 … 15]
Response [Soft, Mid, Hard]

Limiter [OFF / ON]

Processing Profile [Live / Speech / Pop / Uni /
Classic]

Max True Peak [-20 … -9.0 … 0.0]
(dBTP)

Expert [ON / OFF]

Clear Processing History <clear>
Initial Dynamic Gain (dB) [-40 … 0 … 15]
AGC Recovery [Fast / Normal]

Low Level Behavior

Processing Threshold (dBFS) [-80 … -70 … -20]
Below Threshold Mode [Hold / Release]

For details regarding LevelMagic parameters see the bulletin:
"Junger processing parameter description" on the Junger web site:

http://junger-audio.com/downloads.

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54

Setup GUI – AUDIO PROCESSOR – FM Conditioner

FM radio broadcast is not just frequency modulated audio. It consists of different signals and services that
share the ‘space’ available on the FM carrier. A typical stereo radio signal spectrum may look like this:

Mono audio signal (M=L+R) 30Hz to 15kHz base band
Stereo pilot tone at 19kHz approximately 9 % of 75kHz deviation
Stereo audio signal (S=L-R) 30Hz to 15kHz base band
DSB-SC carrier Double-sideband suppressed carrier
RDS signal Radio Data Signal at 1187,5bit/s
DARC signal Data Radio Channel at about 16 000bit/s
SCA signal 14kHz (narrow) or 26kHz (wide) bandwidth for auxiliary audio services

To calculate the overall MPX power the spectrum power of all consisting signals needs to be considered.
Please note that within the FM Conditioner Web UI only RDS and SCA Deviation can be set as additional

services. As SCA and DARC normally cannot be used simultaneously due to their overlapping frequency
bands, the SCA Deviation parameter can be used for DARC also. To calculate the overall deviation, all of the
services in use must be taken into account in order to not exceed the modulation limits defined by the ITU
(see below). After setup this happens internally and is not of concern for the FM Conditioner user.

When dealing with the audio processing side of FM broadcast, four main parameters come into focus:
* Deviation ∆fc of the transmission frequency (carrier) fc

* MPX Power of the modulating signal (modulator)
* Pre-Emphasis to enhance the signal-to-noise ratio of FM transmission
* Baseband bandwidth of all involved services (audio signals and auxiliary data)

ITU-R BS.412 has standardized the maximum values for these parameters. Broadcasters must comply
with these limits to not exceed the planned coverage or interfere with adjacent programs. They are:

* Maximum peak deviation of +75kHz
* Maximum MPX power of 0dBr
* A typical audio baseband cut-off at 15kHz to ensure undisturbed transmission of the

19kHz stereo pilot tone

* For mono operation a typical audio baseband bandwidth of 17.5kHz is utilized (no pilot tone necessary)
Calibration

MPX power is measured in a random interval of 60 s. MPX power of 0dBr should be equal to the
modulation power of a stationary sine signal that causes a deviation of +19kHz. A stimulus frequency of
500Hz is recommended.

The necessary tasks to comply to this rule ‘are simple’: take your pocket power measurement
instrument, hook up your always at fingertip reference antenna, tune into your transmitter and
measure… Now adjust the relevant audio parameters if necessary. Since this is not feasible for studio
equipment we must calculate MPX power prior to modulation and translate them for the studio output.
For a precise calculation all technical equipment needs to be gain matched and calibrated.

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The important step in calibration is to set up the Operating Level. A stationary sine signal at this level
must cause a FM carrier deviation of ±40kHz. If the input level (at FM HPA or uplink line) for this
reference modulation is known, just set the Operating Level in the FM Conditioner accordingly.
In most installations this will be the case.

In a lot of stations +6dBu (analog) or -9dBFS (digital) for a 500Hz tone is reference level. It may be
designated as the operating level and defined at 0dB relative (displayed on a peak level meter). Please
be careful with this type of reference level scale, as this analog operating level of 0dBr is not the same
as 0dBr MPX power!

If the reference modulation is unknown, a sine test tone needs to be applied and the frequency
deviation of the FM carrier needs to be measured over the air. Start with a generator level of -9dBFS
and change this value until ±40kHz deviation is attained. Please note that any Junger Audio unit in the
chain between generator and FM HPA needs to be bypassed first. Calibration is performed without any
processing, additional service or pilot signal considered!

If the Reference Level of your setup differs from -9dBFS the Setup Gain of the FM Conditioner can be
used for level matching.

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The second step of calibration is to set the values for Pilot Tone, RDS, SCA(DARC) Deviation.
The necessary values depend on the setup of the respective encoders. Please refer to the respective
manuals.

After calibration the FM Conditioner will now display the available audio headroom.
Here is an example with an assumed deviation of ~ 12 % of 75kHz for the extra services:

20*log (75kHz – 8.8kHz) / 40kHz = 4,4dB

or -4.6dBFS

This calculation is performed internally and updates automatically when any of the involved parameters
change. The resulting value is called the Ceiling. It is important to know that the Resulting Ceiling is
calculated with the Pre-Emphasis filtering of the FM transmitter included. Thus the wideband true peak
level of the audio signal before Pre-Emphasis needs to be lower. A look at the level relation diagram
may help understanding this:

Pre-Emphasis is a filter system where the higher frequencies are raised by a shelving filter at
transmission stage and equivalently reduced at the receiver end. The Pre-Emphasis filter utilizes a
time constant of 50 µs (or 75 µs in the USA) which results in a gain of 10dB at 10kHz.
This procedure creates a significantly improved signal-to-noise ratio.

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But as the increased high frequency energy adds to the MPX power, it needs to be considered within
the FM Conditioner. There are two facilities to deal with Pre-Emphasis. First a Pre-Emphasis
Headroom parameter reduces the maximum wide band level by lowering the true peak limiter
threshold. This results in lower overall audio levels, but increased high frequency transparency. Second
a process called Pre-Emphasis Limiter reduces the high frequency amount of the audio signal
dynamically and thus creates ‘space’ for the additional Pre-Emphasis shelving. When activated the

Pre-Emphasis Limiter prevents high frequency over-modulation. To reduce its effect the Pre­Emphasis Headroom needs to be increased. If the signal structure requires permanent Pre-Emphasis

Limiter action, the system automatically reduces the input gain of the True Peak Limiter to improve
sound quality. Please note that very short transients may not be ‘catched’ by the Pre-Emphasis
Limiter. This however happens by principle and has no practical relevance for the
FM transmission.

When activating the FM Conditioner it takes over control of the True Peak Limiter algorithm.

Important Note! The TP Limiter parameters on the Level Magic page in the Web UI are automatically
overridden. The Maximum True Peak value cannot be set by the user, as it is automatically calculated and
set to the Ceiling level minus the Pre-Emphasis Headroom. With no Pre-Emphasis Headroom
Maximum True Peak equals Ceiling.

The MPX Limiter algorithm

The most important part of the FM Conditioner processor certainly is the MPX Limiter. As MPX power
is a value that is calculated with one minute of integration time, limiting is a very complicated task.
In theory 60 seconds look ahead time seems appropriate but of course not practically applicable for a
real time processor. Thus the Junger Audio MPX Limiter works with a complex prediction algorithm
that adapts to the incoming signal structure. Still the limiter reference level is a brickwall threshold and
considered sacrosanct. In case of ‘emergency’ the MPX Limiter will reduce the signal level drastically
to prevent any threshold violation. Chances are that the MPX Limiter of the FM Conditioner is the best
MPX brickwall available today.

Please note that the MPX Limiter Reference can of course be violated when the incoming levels are
high and the MPX Limiter was just switched on. By measurement principle it may take up to one
minute for the MPX Limiter to settle.

The MPX Limiter Profile influences the speed and range of the process and in consequence the
neutrality to the incoming sound quality. With softer settings the system needs to apply a buffer zone
between the MPX Limiter Reference and the measured MPX power of the audio signal. Though this
buffer zone is always very small, with harder settings it becomes even smaller and a higher MPX power
can be transmitted. The optimal setting depends on the type and style of program that is broadcast.

A very handy feature of the FM conditioner is the visualization of the development of
MPX power over time:

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The screenshot above shows an example curve of the calculated MPX power
[MPX Power 60 s] (orange). For convenient analysis and set up the graph allows to display a second
MPX curve [MPX Power User] (green) with a user defined integration time. This is especially useful to
see why the MPX Limiter starts working although the MPX power has not reached threshold.
The purple curve shows the gain reduction action of the MPX Limiter. The center white line represents
the selected MPX Limiter reference.

Program [Program 1 / Program 2]
Selects which of the two programs will be displayed on the graph

Graph

Enable MPX Power User [OFF / ON]

Enables the display of the user-defined curve
User Integration Time (s) [1 … 40]

This is only a measurement parameter that has no influence on the
MPX Limiter processing

Time Range (min) [1 / 2 / 5 / 10 / 20 / 30]
Sets the time scale for the MPX power display. The Current

Measurement displays the numerical values of the MPX power
measurement:

Current Measurement

Reset Max <reset mpx max>

resets Duration and

MPX Max value

Duration since reset
MPX Power 60s (dBr) current MPX power
MPX Max (dBr) maximum value

since reset

Pre-Emphasis Limiter (%) bar graph to show

the amount of high
frequency filtering
applied

Recent Measurement

Duration elapsed time since <reset mpx max> was depressed
MPX Max (dBr) maximum MPX power value detected

In the next section the operator can set the audio relevant parameters of the FM conditioning process:

FM Conditioner [ON / OFF]

Setup Gain (dB) [-4.0 … 0.0 … 10.0]
can be used to adapt

loudness processed
signals to MPX criteria
or level matching

Pre-Emphasis [0.0 … 2.0 … 15.0]
Headroom (dB)

MPX Limiter Profile [Soft / Mid / Hard]
True Peak Limiter [0 / 1 Live / 2 Speech /

Profile 3 Pop / 4 Uni / 5 / 6

Classic /
7 / 8 / 9]

Max True Peak (dBTP) [read only]

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The expert mode allows the administrator to set up the parameters of the transmitter and to turn
the MPX Limiter on or off.

Expert [ON / OFF]

Pre-Emphasis [OFF / 50µs / 75µs]
Operating Level (dBFS) [-15.0 … -9.0 … -6.0]
Peak Deviation Target (kHz) [35.0 … 75.0 … 80.0]
Pilot Deviation (kHz) [0.0 … 6.0 … 15.0]
RDS Deviation (kHz) [0.0 … 2.0 … 4.0]
SCA Deviation (kHz) [0.0 … 15.0]
Resulting Ceiling (dBFS) calculated from the operating level, the sub-carrier (pilot-tone) and the

respective RDS and SCA deviation

MPX Limiter [OFF / ON]

Reference Level (dBr) [-4.0 … 0.0 … 4.0]
Low Pass Filter (15kHz) [OFF / ON]

Setup GUI – AUDIO PROCESSOR – Output

Link [unlinked / linked]

defines the coupling of the

control circuits

Output [ON / OFF]]

Mute [ON / OFF]
Attenuation (dB) [-80.0 … 0.0]
Mono [L+R Mono / LL Mono /

RR Mono / Stereo]
Output Delay [0.0 … 2000.0]

Coarse (ms) [
Output Delay [0 … 2000]

Fine (samples) [0 … 2000]

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Setup GUI – AUDIO PROCESSOR – Delay

The D*AP4 has an independent audio delay that may be routed to any signal path inside the device.

Link [unlinked / linked]
defines the coupling of the

control circuits

Delay [ON / OFF]

Output Delay [0.0 … 2000.0]
Coarse (ms) [

Output Delay [0 … 2000]
Fine (samples) [

Important Note! If the audio delay is routed into an internal signal path via the device routing matrix one

must add an initial delay of 27 samples.

Setup GUI – AUDIO PROCESSOR – Mobile UI

The D*AP4 provides an extra UI for live applications that may be used on tablets or mobile phones but
may also be displayed on a PC's web browser. When you click on the <Mobile> soft button in the upper
right area of the GUI above the <Help> button, a new tab in your current browser will open up.

But you can also use the URL: "<IP-address>/mobile" to open the operator UI elsewhere
(in a browser of a different PC or a mobile phone or a tablet). For mobile devices it requires network
integration of the D*AP4 via a WLAN.

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61

The appearance of the mobile UI may be configured at SYSTEM > Remote Access > Mobile UI.
At the bottom you have a representation of the X*AP RM1 Hotkey settings

(see EVENTS > Triggers > Remote Hotkeys). By pressing the <go> soft button you will trigger an action
the same way a remote Hotkey would do. This example represents the factory default settings that are
implemented in the actual release of the D*AP4.
But you can also ignite actions from the UI.

Setup GUI – MEASUREMENT – Setup

As stated at the left side the measurement mode must be set-up here:
AUDIO PROCESSOR > Setup > Loudness Mode

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Setup GUI – MEASUREMENT – Loudness

The D*AP4 LM offers a sophisticated loudness measurement tool for the input and output of the
program path of the device. The three control buttons <pause>, <reset>, <reset max> may be used to
manually control the actual measurement. The pane shows the two measurement blocks for both
programs:

Loudness Mode [EBU R 128]
setting from AUDIO PROCESSOR > Setup > Loudness Mode

Current Measurement [hh:mm:ss]

Time elapsed since measurement started (excluding pauses)

Integrated Loudness (LUFS)
Loudness Range (LU)
Short-Term Loudness (LUFS) numeric and convenient bar graph display
Momentary Loudness (LUFS) numeric and convenient bar graph display
Short Term Max (LUFS)
Momentary Max (LUFS)
True Peak Max (dBTP)

Recent Measurement [hh:mm:ss]

Total time of the recent measurement
Important Note! The measures of the parameters above depend on the loudness mode selected at

AUDIO PROCESSOR > Setup pane.
The measurement data may also be streamed to the J*AM (Junger Application Manager) to feed the

external loudness measurement and loudness logging tool. The J*AM is a PC software package that
one can download from the Jungeraudio.com web site. To perform loudness measurement and
loudness logging one must buy a hardware (USB) dongle.

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Setup GUI – EVENTS – Overview

As mentioned previously, D*AP4 includes a sophisticated event management system.
The event system performs Actions. These actions are built from Events.
Actions may be triggered manually (via the X*AP RM1 remote panel Hotkeys), semi-automatically
(triggered by network commands or GPIs) and automatically (triggered by changes of parameters and/or
the internal status) or as a combination of all three.

The overview shows the building blocks of the action management of the D*AP4:

A trigger is subdivided into a trigger type and a trigger source. E.g. a GPI is a trigger type while its
number (the physical input) represents the trigger source. Other trigger types have sources which must be
configured, like the names of X*AP Hotkeys or network triggers.

Hotkey Sources You may assign hotkeys of the X*AP remote and / or the mobile UI

to become a trigger source.
Network Sources Received via the l-s-b EmBER+ protocol.
Parameter Sources Device parameters / status information grouped into

system and Interfaces.

The triggers will be defined by its trigger equation that may be the logical combination of 2 trigger sources.
The D*AP4 knows five different event types:

Preset Events System / Interfaces / Routing / Audio Processor / Program / Delay
Parameter Events Measurment
Measurement Events Pause / Continue / Reset / Reset Max / Start / Pause / Stop
I/O Events GPOs / Loudness Measurement
Bypass Events Program 1 / Program 2

The D*AP4 has two different action types:

Event Actions executes the predefined events
Bypass Actions executes pre-defined bypass scenarios, independent on

the bypass events

An action runs like a flip-book inside the D*AP4. This powerful technology spans from simply recalling a
certain parameter over specific parameter combinations (household name: "Preset") to the complete
reconfiguration of the D*AP4 including all signal routing, processing parameters and so forth.
It allows you to create your own snap shots where you decide what is part of it and what is not!
But it also enables fail over scenarios where the D*AP4 will automatically react to the system
and/or parameter status.

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64

The steps to set up the EVENTS system are as follows:

1. Define - trigger sources

2. Configure - triggers by logical combination of pre-defined trigger sources

3. Set up events - by selecting presets or GPOs or bypass blocks or measurement controls

4. Create actions - what should happen? Which trigger will launch which event?

The following explanations refer to the factory default settings of the EVENTS system.

Setup GUI – EVENTS – Triggers – Sources – Remote Hotkeys

Hotkeys are the 8 buttons of an X*AP RM1 remote panel. You may give them names and enable them
to show up as active on the X*AP RM1 remote panels main operating menu.

# The number of the Hotkey on the

X*AP RM1 remote panel, counting

from left to right.

Label Each Hotkey may have a label that

appears in the display of the

X*AP RM1 remote panel above that

button.

Enable [ON / OFF]

If you turn it off the respective
Hotkey on the X*AP RM1 remote
panel becomes inactive - no label is
displayed and the button
background light turns off.

<remove> will remove a line from the list. This

will automatically disable the
respective front panel button.

The number of hotkey triggers is not limited. You may also add virtual hotkeys which can be used by a
graphical UI for example that may have more than 8 compared to the X*AP RM1.

Setup GUI – EVENTS – Triggers – Sources – Network

Network triggers are based on the EmBER+ protocol. See code.google.com/p/ember-plus/ for details.
The D*AP4 receives such triggers over the TCP/IP network. The triggers are issued by a remote device
or a broadcast automation system. You may assign these triggers to virtual panels, physical buttons or
play list events, of Ember+ enabled control instances.

# The number of the network

trigger.

Label Label of that network trigger.

It appears on the Configuration
pane as well as in the EmBER+
tree of the setup interface of a
control instance.

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65

We have given the first Network trigger the name "Soft GPI-1" to explain how it works.
It will be activated from the automation system if the pre-defined event has been reached
in the play list.

Lets have a look at the "Soft GPI-1" trigger.
If you open the EmBER+ viewer tool you must drill down to network_trigger:

The path is also shown at the
bottom of the main window:

As a value you will receive the trigger name that
you have given to the first network trigger "Soft GPI-1".

The automation may now fire that trigger by simply
returning the string.
For demonstration how it works press <Change … > In the popup press <OK>.
This works as sending a pulse (behaves like a push button).

But the automation may also give it a value of "1" to set the trigger and later on a "0" to reset it.
What best to do depends on the functionality you need for a specific application.

Setup GUI – EVENTS – Triggers – Sources – Parameters

Above is an example of possible parameter trigger sources.

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66

Setup GUI – EVENTS – Triggers – Configuration – Trigger Equation

To form a Trigger you may logically combine two trigger sources below.

Trigger Here you define a label for the trigger (e.g. "48kHz fail").
Source 1 The first source of a logical combination of two trigger sources.

Invert [ON / OFF]

If the type of trigger allows an inverted operation it can be defined here.
Type [GPI / Hot Key, Network / Parameter / Event active / Trigger effective/

Bypass / Sync Lock]

Source [e.g. for GPIs it will be 1 … 8]
It acts like an index for the respective trigger type (in case of GPIs

it is the physical GPI number or in case of X*AP Hotkeys the key
number (1 of 8).

Logic Kind of logical operation [and, or, xor].
Source 2 Second source for the logical combination of two trigger sources.

If only one source exists, you may leave it unassigned [-].

Now since we have prepared the ignition, we must load the bombs …
I.e. we define what will happen if … so we must define the events.

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Setup GUI – EVENTS – Events – Preset Events

A preset event is a group of presets you may load at one occasion to the On Air parameters of function
blocks. When executing such an event you may for example change the Equalizer, compressor and EQ
settings, by simply assigning the individual preset of your choice to the processing block or the system, to
an interface, to the routing, to the program path or even to the monitor output:

Some blocks have empty selection drop downs
because nothing is selected while others don't have
such drop down at all because no presets
exists there.

As an example you see here the pull down list
of all existing presets from the
Filter – Spectral Signature section:

………………….

Here you have the possibility to reconfigure the D*AP4 completely, partially or to change a few audio
parameters marginally. Reconfigure also means you can use this part to create Events
which act like snap shots!

To create a new preset event you must press <create event>:

Event name [Snap 1]
A unique name to address this preset

event later in the action manager.

.

Use Settings from [ON Air / Existing Event / Empty]

On Air The events manager will copy

all On Air parameters to new presets
in all function blocks (that have been
selected via the "Include" check
boxes).

.

Existing Event you will be asked from which event it

originated. The presets of the
selected event will be copied to the
new event and may be marginally
tuned afterwards to form a slightly
different event.

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68

Empty Creates a set of empty fields where you may select the preset of

your choice for the respective function block or leave it empty if no
changes are needed …

Important Note! This is the way to create your own snap shot. The new presets will be automatically
given the name of this event! So be careful to select meaningful names. You will find them later on in all
your function blocks!

Include these Blocks [System / Interface / Routing / Audio Processor / Voice 1 / Voice 2 /

Program / Monitor]

You can tell the event manager which function blocks must be included

in this event (or not).

Setup GUI – EVENTS – Events – Parameter Events

Parameter events are designed to change parameters when executing an action.
You define the parameter here:

This example shows the possible parameters to control the loudness measurement of the loudness
logger of the Junger Audio application manager J*AM.

Category [System / Audio Processor / Measurement]
Subcategory [in case of Category = System >> Setup]

[in case of Category = Audio Processor >> Voice Over]
[in case of Category = Measurement >> Loudness]

Parameter depending on the pre-selected Subcategory you may define the

relevant parameter which you want to set
(e.g. to control the integration measurement of the J*AM).

Expression If applicable, the value of the parameter that will be set if the parameter

event is triggered during an event action
(e.g. set a marker for the J*AM live plot)

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69

Setup GUI – EVENTS – Events – Measurement Events

The measurement event as part of an action can control the integrated measurement of the processed
programs:

For each measurement event you can assign one of the possible control functions.
In the example above the measurement event "Loudness Reset" calls the "Reset" command.

Setup GUI – EVENTS – Events – I/O Events

At the moment I/O events are limited to control the GPOs of the D*AP4:

Each GPO (when incorporated into that I/O event) can be set to the behavior as follows:
^clear Turns a GPO off that was previously turned on.
set Turns a GPO on.
follow The GPO follows the state of the trigger.
toggle The trigger will toggle that GPO.

Be careful because it needs a definite known starting condition to work
properly.

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70

Setup GUI – EVENTS – Events – Bypass Events

The D*AP4 allows you to bypass some or all of the function blocks. This can be used
for A/B comparison for all or for e subset of function blocks:

Now we have loaded the bombs, let's ignite them …

Setup GUI – EVENTS – Actions – Event Actions

This is the point where all previously set sub functions will be combined:

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71

Here you create the action!

You must give the action a name, select a trigger (from the Trigger Equation) and select the respective
Preset - Measurement - I/O and/or Bypass event.

Done …

Setup GUI – EVENTS – Actions – Bypass Actions

The bypass action is bound to the <BYPASS> button of the X*AP RM1 remote panel.
You must simply select "follow" or "-" for the setup field.

But it also allows you to turn the bypass of one, some or all function blocks on. You must simply tick the
check boxes in the right hand panel:

Trigger

Source The X*AP and / or manual selection
Lock Source [ON / OFF]

The X*AP RM1 remote panel <BYPASS> button may be

disabled / enabled here.

Force Trigger Active [ON / OFF]

Force the bypass function from the GUI instead of the

X*AP RM1 remote panel <BYPASS> button.
Bypass Event
Programs Audio processing blocks of the respective program path.

Input … Output [follow / -]

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72

Technical Data - 4 Channel Audio Processor [D*AP4 LM EDITION, D*AP4 FLX]

General

• 4 channel audio processor (2 stereo programs)

• Expandable by hard and software options

Audio Sample Rate 44.1, 48, 88.2, 96kHz, (32 … 196kHz @ input with SRC)

±150ppm sync input capture, ±25ppm master-sync stability
Relevant specifications comply with AES3-X-2009, IEC 60985 and

AES11-2009
4 channels (2 stereo inputs), 2 XLR-3 connectors and 2 BNC connectors,

alternative inputs - user settable input selector
24bits, transparent forwarding of PCM and compressed audio (w/o SRC)

24bits, PCM, sample rate converter (SRC) activated
Impedance 110Ohm differential (XLR-3)

75Ohm single-ended (BNC)

Input level 0.3 … 5Vpp @ 110Ohm differential (XLR-3)

0.3 … 5Vpp @ 75Ohm single-ended (BNC)

AES/EBU Inputs

Sample Rate
Converter (SRC)

THD+N -120dB @ 0dBFS, 1kHz
Latency < 0.3ms

Relevant specifications comply with AES3-X-2009, IEC 60985 and
AES11-2009

4 channels (2 stereo outputs),
2 XLR-3 connectors and 2 BNC connectors, both connector types carry the
same signal

24bits, transparent forwarding of PCM and compressed audio
Impedance 110Ohm differential (XLR-3)

75Ohm single-ended (BNC)

Output voltage 3Vpp (typ.) @ 110Ohm differential (XLR-3)

1Vpp (typ.) @ 75Ohm single-ended (BNC)

AES/EBU Outputs

Power fail relay bypass between AES/EBU inputs and outputs (can be
deactivated by jumper)

Multi-standard synchronization interface for AES/EBU, wordclock or video­sync (black burst, tri level), complies with AES11-2009 and relevant audio
or video standards

Connector type BNC
AES/EBU input 0.3 … 5Vpp @ 75Ohm single-ended
Wordclock input 1 … 5Vpp @ 75Ohm single-ended

1Vpp (nom.) @ 75Ohm single-ended Video-sync input
Rates supported: 23.975, 24, 24.975, 25, 29.97,

30, 49.95, 50, 59.94, 60fps (SD and HD)

Sync Input

On-board audio ports and master-sync capable option boards may also be
selectable as sync source.

Word clock output, complies with AES11-2009 Sync Output
Connector type BNC

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73

Wordclock output 2.4V (typ.) @ 75Ohm single-ended
Network Interface RJ45 connector, 10/100Mbit Ethernet auto sense, full duplex, auto MDI/X
USB Interface USB 2.0 connector to internal console interface

8 general purpose inputs (GPI), divided into 2 groups with separate
common signal, isolated

Connector type D-Sub25 connector female, same for GPO
Input conditions 3 … 24Vdc, < 5mA

GPI Signals

Auxiliary supply 5V (nom.), 200mA (max.), isolated
8 general purpose outputs (GPO), SPST, divided into 2 groups with

separate common signal, isolated
Connector type D-Sub25 connector female, same for GPI

GPO Signals

Output conditions 24Vac/dc (max.), 120mA (max.)
Expansion Slot 1 general purpose expansion slot for option boards
Power Supply Dual power supply, automatic fail over,

85 … 264Vac, 50 … 60Hz, 58W (max.)
Environmental Operating temperature 0 … 50ºC, fan cooled,

Non-operating -20 … 70ºC,

Humidity < 90%, non-condensing
Physical 19", 1 RU, 27 cm depth, net weight ca. 5 kg, shipping weight ca. 7.5 kg

Technical Data – Option Board SDI I/O (3G/HD/SD) [O_DAP_SDI_a]

Standards Video complies with SMPTE 424/425M (3G, Level A and B), SMPTE 292M

(HD) or SMPTE 259M (SD). Automatic format detection.
Audio embedding and de-embedding complies with SMPTE 299M (3G,
HD) or SMPTE 272M-AC (SD).

Metadata embedding and de-embedding complies with SMPTE 2020-2.
Video Data Rate 2970/2967Mbps (3G), 1485/1483.5Mbps (HD), 270Mbps (SD)
Video Formats 1080p23.975, 24, 25, 29.97, 30, 50, 59.94, 60

1080i50, 59.94, 60

720p23.975, 24, 25, 29.97, 30, 50, 59.94, 60

625i50, 525i59.94, …
Video Delay User selectable 0 …15frames, can be disabled
Audio 24bits, transparent forwarding of PCM and compressed audio
Audio Channels 16 inputs and 16 outputs (4 groups with 4 channels each)
Audio Sample Rate 48kHz (SDI compliant)
Audio Delay Embedder audio delay selectable 0 … 320 ms per channel
Metadata (RDD6) 1 channel input and 1 channel output, SDID selectable

Impedance 75Ohm

Return loss > 15dB, 5 … 1485MHz

> 10dB, 1485 … 2970MHz

BNC Input

Cable length (max.) 250m @ SD for Belden 1694A cable

230m @ HD for Belden 1694A cable
140m @ 3G for Belden 1694A cable

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74

Jitter tolerance > 0.7UI (Alignment)

Impedance 75Ohm
Output voltage 0.8Vpp (typ.)
Return loss > 15dB, 5 … 1485MHz

> 10dB, 1485 … 2970MHz

BNC Output

Output jitter < 0.2UI (Alignment), < 0.5UI (Timing)

Audio Latency Input to Output Embedder and de-embedder combined

HD, 3G < 0.6ms
SD typ. 1.5ms (< 2 ms)

General Features

• Power fail relay bypass (may be activated via GUI)

• Lip-Sync compensation for processed and non-processed audio

signals

• Dedicated routing for non-processed channels, all channels
(max. 16) can be routed to/from the device or looped through

• Test pattern generator

• Master-sync capable

• ITU-R BT.1685 / ARIB STD-B39 metadata support

Technical Data – Option Board Analog Out [O_DAP_8DA_a]

Audio 24bit D/A-converter
Audio Channels 8 output channels (e.g. for speakers)
Audio Sample Rate 44.1, 48, 88.2, 96kHz

8 channels
Connector type D-Sub25 connector female
Output Level (max.)

(0dBFS equiv.)

0 … 24dBu, adjustable in 0.5dB steps

Impedance 50Ohm (typ.), differential
THD+N -91dB @ 0dBFS = 15dBu, 1kHz
Dynamic range > 103dB (RMS)
Crosstalk attenuation > 103dB @ 0dBFS = 15dBu, 1kHz

Analog Outputs

Frequency response 20Hz … 22kHz (< ±0.3dB) @ 48kHz

20Hz … 43kHz (< ±0.3dB) @ 96kHz

General Features

• Power fail glitch prevention

• Balanced analog outputs

• Electrical isolation between outputs and device

D*AP4

75

Technical Data – Option Board Analog I/O [O_DAP_ADDA_a]

Audio 24bit sigma-delta A/D-converter, 24bit D/A-converter
Audio Channels 4 input channels, 4 output channels
Audio Sample Rate 44.1, 48, 88.2, 96kHz

4 channels
Connector type D-Sub25 connector female, same for outputs
Input Level (max.)

(0dBFS equiv.)

0 … 24dBu, adjustable in 0.5dB steps

Impedance 20kOhm (typ.), differential
THD+N -93dB @ 0dBFS = 15dBu, 1kHz
Dynamic range > 110dB (RMS)
Crosstalk attenuation > 93dB @ 0dBFS = 15dBu, 1kHz

Analog Inputs

CMRR > 71dB @ 0dBFS = 15dBu, 1kHz

Frequency response 20Hz … 22kHz (< ±0.1dB) @ 48kHz

20Hz … 43kHz (< ±0.1dB) @ 96kHz
4 channels
Connector type D-Sub25 connector female, same for inputs
Output Level (max.)

(0dBFS equiv.)

0 … 24dBu, adjustable in 0.5dB steps

Impedance 50Ohm (typ.), differential
THD+N -91dB @ 0dBFS = 15dBu, 1kHz
Dynamic range > 103dB (RMS)
Crosstalk attenuation > 103dB @ 0dBFS = 15dBu, 1kHz

Analog Outputs

Frequency response 20Hz … 22kHz (< ±0.3dB) @ 48kHz

20Hz … 43kHz (< ±0.3dB) @ 96kHz

General Features

• Power fail relay bypass between inputs and outputs

• Balanced analog inputs and outputs

• Electrical isolation between inputs, outputs and device

D*AP4

76

Technical Data – Option Board AES/EBU I/O [O_DAP_AES_a]

Standards Relevant specifications comply with AES3-X-2009, IEC 60985 and

AES11-2009

Audio 24bits, transparent forwarding of PCM and compressed audio (w/o SRC)

24bits, PCM, sample rate converter (SRC) activated

Audio Sample Rate 44.1, 48, 88.2, 96kHz, (32 … 196kHz @ inputs with SRC)

8 channels (4 stereo inputs)
Connector type D-Sub25 connector female, same for outputs
Impedance 110Ohm or 75Ohm, jumper selectable

(110Ohm default)

Input level 0.3 … 5Vpp @ 110Ohm differential

0.3 … 5Vpp @ 75Ohm single-ended

Inputs

Sample Rate
Converter (SRC)

THD+N -120dB @ 0dBFS, 1kHz

Latency < 0.3 ms
8 channels (4 stereo outputs)
Connector type D-Sub25 connector female, same for inputs
Impedance 110Ohm or 75Ohm, jumper selectable

(110Ohm default)

Outputs

Output voltage 3Vpp (typ.) @ 110Ohm differential

1Vpp (typ.) @ 75Ohm single-ended

General Features

• Power fail relay bypass (can be deactivated by jumper)

• Input sample rate converters (SRC)

• Electrical isolation between inputs, outputs and device (if

configured for differential mode, 110Ohm)

• AES3 channel status management, non-audio detection

• Master-sync capable

Technical Data – Option Board MADI I/O, BNC [O_DAP_MB_a]

Standards Relevant specifications comply with AES10-2008 and AES11-2009.
Audio 24bits, transparent forwarding of PCM and compressed audio
Audio Sample Rate 44.1, 48, 88.2, 96kHz, (88.2, 96kHz short framing)

64/56 channels @ 44.1 and 48kHz, 32/28 @ 88.2 and 96kHz
Processable by D*AP8: 16 channels @ 44.1, 48kHz
Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

Impedance 75Ohm
Input level 0.15 … 0.8Vpp @ 75Ohm

BNC Input

Cable length (max.) 150m (Belden 1694A)
64/56 channels @ 44.1 and 48kHz, 32/28 @ 88.2 and 96kHz

Processable by D*AP8: 16 channels @ 44.1, 48kHz
Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

BNC Output

Impedance 75Ohm

D*AP4

77

Output voltage 0.6Vpp (typ.) @ 75Ohm
General Features

• Input cable equalizer for extended range and robustness

• Reference grade word clock recovery, master-sync capable

• Dedicated routing for non-processed channels, all channels

(max. 64) can be routed to/from the device or looped through

• AES3 channel status management, non-audio detection

Technical Data – Option Board MADI I/O, Optical [O_DAP_MO_MM_a, O_DAP_MO_SM_a]

Standards Relevant specifications comply with AES10-2008 and AES11-2009.
Audio 24bits, transparent forwarding of PCM and compressed audio
Audio Sample Rate 44.1, 48, 88.2, 9kHz, (88.2, 96kHz short framing)

64/56 channels @ 44.1 and 48kHz, 32/28 @ 88.2 and 96kHz
Processable by D*AP8: 16 channels @ 44.1, 48kHz
Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

Connector type LC (IEC 61754-20)
Center wavelength 1310nm (typ.), 1270 … 1360nm

Optical Input, LC

Input optical power [O_DAP_MO_MM_a]:

-31 … -8dBm, OM2 multimode (50/125µm)
[O_DAP_MO_SM_a]:

-23 … -8dBm, singlemode (9/125µm)
(standard values, others on request)

Cable length (max.) [O_DAP_MO_MM_a]: 1.5km, OM2 multimode

[O_DAP_MO_SM_a]: 2km, singlemode
(standard values, others on request)

64/56 channels @ 44.1 and 48kHz, 32/28 @ 88.2 and 96kHz
Processable by D*AP8: 16 channels @ 44.1, 48kHz
Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

Connector type LC (IEC 61754-20)
Center wavelength 1310nm (typ.), 1270 … 1360nm

Optical Output, LC

Output optical power [O_DAP_MO_MM_a]:

-23 … -14dBm, OM2 multimode (50/125µm)
[O_DAP_MO_SM_a]:

-15 … -8dBm, singlemode (9/125µm)

(standard values, others on request)
Optical and BNC output carry the same signal.
Impedance 75Ohm

BNC Output

Output voltage 0.6Vpp (typ.) @ 75Ohm

General Features

• Field-replaceable optical module (SFP)

• Reference grade word clock recovery, master-sync capable

• Dedicated routing for non-processed channels, all channels

(max. 64) can be routed to/from the device or looped through

• AES3 channel status management, non-audio detection

• Parallel outputs (BNC/LC) for media conversion

D*AP4

78

Technical Data – Option Board Audio-over-IP DANTE™ I/O [O_DAP_DANTE_a]

Standards Audio-over-IP by Dante™ Digital Audio Networking Standard
Audio 24bits, transparent forwarding of PCM and compressed audio
Audio Sample Rate 44.1, 48, 88.2, 96kHz
Inputs and Outputs 2 x Gigabit Ethernet RJ45 connectors (100M/1Gbit),

primary and secondary port

Inputs Processable by D*AP8: 16 channels @ 44.1, 48kHz

Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

Outputs Processable by D*AP8: 16 channels @ 44.1, 48kHz

Processable by D*AP4: 8 channels @ 44.1, 48, 88.2, 96kHz

General Features

• AES67 compliant (when available)

• Network master-sync can be provided by D*AP device

• Master-sync capable (for D*AP device)

• Non-audio detection for input channels

• Glitch-free Dante™ audio redundancy using dual Ethernet

networks

D*AP4

79

Technical Data - Rear Connectors - pin assignment

8x GPI/O Mic / Line IN

connector:

GPI/O

female 25-pin D-Sub

1 GPI_1, 2, 3, 4 common
2 GPI_1
3 GPI_2
4 GPI_3
5 GPI_4
6 GPI_5, 6, 7, 8 common
7 GPI_5
8 GPI_6

9 GPI_7
10 GPI_8
11
12
13

Isolated 5V +
14 GPO_1, 2, 3, 4 common
15 GPO_1
16 GPO_2
17 GPO_3
18 GPO_4
19 GPO_5, 6, 7, 8 common
20 GPO_5
21 GPO_6
22 GPO_7
23 GPO_8
24

Isolated 5V -

25

Isolated 5V -

connector:

Mic / Line input

female XLR

1 GND
2 IN +
3 IN -

Shield Virtual GND

D*AP4

80

Technical Data - Optional Interface Modules – pin assignment

4x analog I/O [O_DAP_ADDA_a] 4x AES I/O [O_DAP_AES_a] 8x analog out [O_DAP_8DA_a]

connector: 4 x analog I/O

female 25-pin D-Sub

1 OUT-4 +
2 GND
3 OUT-3 ­4 OUT-2 +
5 GND
6 OUT-1 ­7 IN-4 +
8 GND

9 IN-3 ­10 IN-2 +
11 GND
12 IN-1 ­13
14 OUT-4 ­15 OUT-3 +
16 GND
17 OUT-2 ­18 Out-1 +
19 GND
20 IN-4 ­21 IN-3 +
22 GND
23 IN-2 ­24 IN-1 +
25 GND

connector:

4x AES I/O

female 25-pin D-Sub

1 OUT-4 +
2 GND
3 OUT-3 ­4 OUT-2 +
5 GND
6 OUT-1 ­7 IN-4 +
8 GND

9 IN-3 ­10 IN-2 +
11 GND
12 IN-1 ­13
14 OUT-4 ­15 OUT-3 +
16 GND
17 OUT-2 ­18 OUT-1 +
19 GND
20 IN-4 ­21 IN-3 +
22 GND
23 IN-2 ­24 IN-1 +
25 GND

connector: 8 x analog out

female 25-pin D-Sub

1 OUT-8 +
2 GND
3 OUT-7 ­4 OUT-6 +
5 GND
6 OUT-5 ­7 OUT-4 +
8 GND

9 OUT-3 ­10 OUT-2 +
11 GND
12 OUT-1 ­13
14 OUT-8 ­15 OUT-7 +
16 GND
17 OUT-6 ­18 OUT-5 +
19 GND
20 OUT-4 ­21 OUT-3 +
22 GND
23 OUT-2 ­24 OUT-1 +
25 GND

D*AP4

81

Technical Data – GPI wiring

The device offers a unique circuitry to save GPI setups from hum and noise influence in complex
installations. Here the principle circuit of one of the 8 GPI inputs:

At the GPI input is a bridge rectifier I.e. you do not need to care about the polarity of the input voltage. A
constant current source in line with the optical coupler limits the current.
You must simply provide a voltage in the range from 5 V to 30 V to activate a GPI.

If you have open collector outputs or simple relay closures as the driving GPOs (this technique is commonly
known as "low active" and will be found in most legacy equipment),
you must wire up an auxiliary voltage supply.

The device provides such auxiliary power supply. It offers a balanced 5 V source that you can imaging
as a battery.

Here an example how to wire up GPI #4:

We strongly recommend to spent a wire for ground connection instead of using the chassis common grounds
of an installation.

GPI
common

GPI_x

5 V balanced

1324 25

1

GPI 1, 2, 3, 4

common

GPI 1

2

GPI 4

5

GPO

relay or open collector

25 pin GPI/O connector

D*AP4

82

Safety Information

Electrical

Safety classification: Class 1 – grounded product / Schutzklasse 1
Corresponding to EN 60065:2002

Power connection: The device must be connected to a power socket that provides a

protective earthing conductor.

Power switch: The power switch is a toggle switch placed at the rear of the device.
The ON / OFF position is indicated by engravings [I] / [o] on the lever. It must be

reached without difficulty.
The devices may be equipped with dual power supply, in this case it will have
two power cords and switches. You must inform yourself about the location and
assignment of the switches.

Water protection: The device must not be exposed to splash or dripping water.
It is permitted to place a container filled with liquids (e.g. vases)
on top of the device.

Service safety Only qualified personnel should perform service procedures.

Do not service alone: Do not perform internal service or adjustments of the device unless another

person capable of rendering first aid and resuscitation is present.

Disconnect power: To avoid electrical shock, switch off the device power, then disconnect the

power cord from the mains power. Do not block the power cord; it must remain
accessible to the user at all times

To avoid fire or personal injury

Mounting: It must be placed on a flat surface or must be mounted into an 19" rack.

It is recommended to use metal brackets (sheet steel angle) to support the
device.

Provide proper this case and if the device has a built in fan, a gap of at least 1cm must be
Ventilation left between the device edge and the steel angle. It is highly recommended to

leave a gap of at least 1RU above and below the device.

Use proper power cord Use only the power cord specified for this product and certified for the country of

use.

Do not operate Do not operate this product with covers or panels removed.
without covers

Do not operate If you suspect that there is damage to this product, have it inspected by
with suspected failures by qualified service personnel.

Risk of explosion: The device contains a lithium battery. If replaced incorrectly or by a different or

inadequate type an explosion may occur.

Warranty

Standard Junger Audio two-year warranty on parts and labor.

Specifications are subject to change without notice

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