Thank you for buying and for using the 4-channel Digital Audio
Toolbox b40.
Not only you have aquired the latest generation of digital
dynamic range processing, but also a piece of equipment which
is unique in its design and specification.
Please read this manual carefully to ensure you have all the
information you need to use the 4-channel Digital Audio Toolbox
b40.
The unit was manufactured to the highest industrial standards
and went through extensive quality control checks before it was
supplied.
If you have any comments or questions about installing, settingup or using the b40, please do not hesitate to contact us.
9. Warranty and service information ...........................................
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5-4
5-4
5-4
5-4
5-4
5-5
5-5
5-5
6-1
6-1
6-1
6-2
7-1
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9-1
2. FUNCTION DESCRIPTION
FUNCTION DESCRIPTION
The programmable digital audio toolbox b40 is a professional
studio device for simple processing of 4 digital audio channels.
It is easy to change, to process and to rearrange up to 4 signals
with the audio toolbox b40. Level corrections for stereo or quad
mixes, channel swapping, fades - efficient and fast done with the
toolbox b40. It is not necessary to use a production mixer for
duplication, dubbing or simple editing - b40 has the functionality.
The four channel configuration matches the audio capability of
Digital VTR's. B40 can be used as remotable and programmable
audio breakout box in digital video systems.
The unit is easy to operate and requires only a limited number of
settings for fast and efficient audio production.
• 4 channel programmable digital audio toolbox
• user friendly preset and recall system
• 4 x 4 mix-matrix
• input and output gain control, automated fader function
• audio delay, level/overload display
• pairwise bit transparent mode input to output
• extern sync mode, AES/EBU or VIDEO (or SDI if
optional SDI-interface is present)
• RS-422 interface for serial remote
• GPI interface for parallel remote control, tally output
All signal processing is done in the digital domain by Texas
Instruments floating point signal processors. The use of 32 bit
word length for calculation ensures that there is no deterioration
in signal quality, even if an audio signal with a maximum word
length of 24 bit is input into the processing of the unit.
GAIN means linear amplification of input or output signals. The
input or output gain can be changed in steps of 0.1 dB , within a
range from -15...+15 dB.
Adjustment of GAIN is channel independent.
Setting the matrix means to set or to reset the crosspoints of the
4x4 mix-matrix. Because this matrix is a mix-matrix each output
line can be the sum of up to all four input lines. Amplifying and
mixing the input signals can make OVERLOAD! If an Overload
appears, the output level display shows the corresponding
„OVER“-message.
A fade is started automatically every time, if a matrix point is
modified. This fade is a linear change of input gain from current
value to infinity (or the other way) at a specific time (FADE
TIME).
fader function each recall of preset is starting fade in or fade
out depending on matrix setting
set of matrix point > fade in
reset of matrix point > fade out,
If at an output line the input crosspoints of different channels
become set and reset at the same time a linear crossfade is
made between these input signals.
FADE TIME adjustable fade in/out time (0 .. 5 sec)
For each input channel there is an audio delay available. The
delay is adlustable between 0 and 160 ms in steps of 1 ms.
The delay can be used to give a correction if the audio signals
are in the right timing.
In case that the input signal (audio pair 1/2 or/and 3/4) is not
audio (but AC-3, Dolby E, MPEG..) the input can be feeded
directly to the related output bit transparent (no bit changes). The
unit is switching to transparent automatically if “non audio” flag
in the Channel Status Bit of the AES signal is set. Otherwise
transparent mode can be set manually by the user.
The digital audio toolbox b43 is fitted with an serial remote
interface in RS-422 format.
Every device needs a device address to be registered in a
remote system. The address can be selected with the ADDR
switch on the rear panel. 16 addresses are selectable (0..F).
The changed address is valid with next power-on reset.
Up to 16 toolboxes b43 can be controlled from one remote panel.
Device model name and device address are to recognize using
the remote protocol of serial remote interface by an automation
system or by PC. With it various boxes can be combined in one
remote system or remote chain. However a maximum of 16
devices per model can be controlled in one chain.
The digital audio toolbox b40 was carefully packed in the factory
and the packaging was designed to protect the equipment from
rough handling. Please examine carefully the packaging and its
contents for any signs of physical damage, which may have
occured in transit.
The digital audio toolbox b40 is a device under the safety
category Schutzklasse 1 in keeping with the VDE 0804
standards and may only used with power supply installations
built according to regulations.
Check the voltage details printed at the rear panel are the same
as your local mains electricity supply.
The digital audio toolbox b40 is equipped with standard
connectors (see also chapter 3).
Before connecting the digital audio toolbox b40 switch the power
off at all connected units.
The digital audio toolbox b40 is made as standard 19“ unit (EIA
format). It occupies 1 RU (44 mm height) space in a rack.
Please allow at least addititonal 3“ depth for the connectors on
the rear panel.
When installing the unit in a 19“ rack the rear side of the unit
needs some support, especially for mounting in flight cases.
The digital audio toolbox b40 should not be installed near units
which produce strong magnetic fields or extreme heat. Do not
install the filter processor directly above or below power
amplifiers.
If, during operation, the sound is interrupted or displays no longer
illuminate, or if abnormal odor or smoke is detected immediately
disconnect the power cord plug and contact your dealer or
Jünger Audio.
The digital audio toolbox b40 has a digital signal output only. To
the problem-free combination of following digital devices, the
digital signal processing can be locked to an external clock
reference. The selection of the corresponding input is made in
the SYNC MODE menu. If the chosen sync input is connected
with the sync signal, this signal is used for synchronization
automatically. The digital output signal can be clocked with the
following clock frequencies:
CH 1/2locks with the clock frequency of the input signal at digital input CH 1/2 (AES/EBU, 48 kHz)
EXT SYNC locks with the clock frequency at the
external sync input (AES/EBU, 48 kHz)
VIDEO locks with the clock at the Video sync input
(internal 48 kHz)
SDI VIDEO locks with the clock at the SDI input
(internal 48 kHz)
Both digital outputs CH 1/2 and CH 3/4 are locked with same
clock frequency.
Note: SDI sync is available only if SDI interface is installed!
The digital audio toolbox b40 can be remote-controlled by
means of parallel GPI contacts.
use : remote-controlled changeover of presets
connector: D-SUB 15pin, female
Pin assignments
Pin Signal name Logic I/O Functions
1 PRESET1 L I recall preset1
2 PRESET2 L I recall preset2
3 PRESET3 L I recall preset3
4 PRESET4 L I recall preset4
5 PRESET5 L I recall preset5
6 PRESET6 L I recall preset6
7 PRESET7 L I recall preset7
8 PRESET8 L I recall preset8
9 MUTE L I Muting outputs
10 BYPASS L I bypass on
11 not used
12 Phase rev ch1/2 L I
13 Phase rev ch3/4 L I
14 Common pin External voltage feed
15 +5V O Test power source
Ground on shield of the connector only!
Electrical specification:
GPI input potential free by opto-coupler, low activeOFF: +3.5…+30V between GPI input
and pin14
ON: less then 1.5V
min 50ms
Note: If using an external voltage feed it has to be connected to pin 14!
External Ground is switching the GPI on any of the inputs.
An internal voltage feed is available on pin 15. Ground is available from the
shield of the connector only! By using the internal voltage feed there is no
electrical isolation given anymore.
The digital audio toolbox b40 can transmit specific device
statuses via parallel Tally lines.
use: Control of the remote-controlled changeover of
presets
connector: D-SUB 15pin, male
Pin assignments
Pin Signal name I/O Functions
1 T1 open contact O preset1 recalled
2 T2 open contact O preset2 recalled
3 T3 open contact O preset3 recalled
4 T4 open contact O preset4 recalled
5 T5 open contact O preset4 recalled
6 T6 open contact O preset4 recalled
7 T7 open contact O preset4 recalled
8 T8 open contact O preset4 recalled
9 T9 open contact O mute
10 T10 open contact O bypass
11 T11 open contact O Not used
12 T12 open contact O Not used
13 T13 open contact O Not used
14 T14 open contact O Not used
15 root Common root contact
The cable is wired 1:1 completely, the shield of the cable must be connected
on both ends!
REMOTE IN
Pin Signal name Functions
1 DSR + out Data set ready
2 DSR - out
3 SENSE in Interrogation Remote
4 RXD + out Receive data
5 RXD - out
6 DTR + in Data terminal ready
7 DTR - in
8 TXD + in Transmit data
9 TXD - in
REMOTE OUT
Pin Signal name Functions
1 DSR + in Data set ready
2 DSR - in
3 GND GND
4 RXD + in Receive data
5 RXD - in
6 DTR + out Data terminal ready
7 DTR - out
8 TXD + out Transmit data
9 TXD - out
All control elements gives direct access.
In menu modes the alphanumeric display above the related
button or rotary knob is showing the specific function.
Preset selection
Input level
display
4
4.1.
FRONT PANEL
Output level
display
Sync selection
fig. 1: front panel b40
SYNC selection of sync input
IN / OUT group selection for SDI input/output
PREVIEW offline editing of presets
PRESET preset selection and administration
1/2 and 3/4 input selection AES / SDI
TRANSPARENT bit transparent mode for ch1/2 or ¾
Input settings
Input delay & gain Mix-Matrix
Output
settings
CONTROL
ELEMENTS
mode
input
Mains
switch
Operation manual b40, chapter 4 -location of parts and controls- page 4-1
4. LOCATION OF PARTS AND CONTROLS
input
MASTER ganging control knob for ch1…4
DELAY selection (push) and adjustment (turn)
of audio delay (0…160ms)
GAIN selection (push) and adjustment (turn)
of output gain
mix matrix
INPUT 1...4 selection of input channel
and then
OUTPUT 1...4 selection of output channel
to set or reset connecting points of the matrix
output
GAIN selection (push) and adjustment (turn)
of output gain
MASTER ganging control knob for ch1…4
FADE selection of fade time adjustment
(I: fade in, O: fade out)
BYPASS switches bypass on and off
page 4-2 Operation manual b40, chapter 4 -location of parts and controls-
4. LOCATION OF PARTS AND CONTROLS
SDI IN-/
OUTPUT
DIGITAL
INPUTS
SERIAL
REMOTE
IN/OUT
GPI REMOTE
IN/OUT
fig. 2: rear panel b40
POWER INPUT
IEC mains input connector 100-240V, 50/60 Hz with integrated fuse
REMOTE
serial remote interface RS-422
connector: 9pin SUB-D, input - female, output - male
GPI
paralle remote interface
TALLY-out open relais contact
connector: 15pin SUB-D, male
input for ext. sync signal (AES 3 format, 75 Ohm, unbal)
input for video sync signal (blackburst, 75 Ohm, unbal)
SDI IN / OUT (only if installed!)
Input/output for serial digital video (ITU-R BT.601, SMPTE 272M-A)
with embedded audio Format: 270 Mb/s, 525/625 line rate, 75 Ohm,
connector: BNC socket
DIGITAL IN
input for AES/EBU standard format
connector: XLR female panel jack
1- ground, 2-3 signal, balanced
connector: BNC socket 75 Ohm, unbalanced
Operation manual b40, chapter 4 -location of parts and controls- page 4-3
4. LOCATION OF PARTS AND CONTROLS
4.3
SWITCHES AND
JUMPERS FOR
CONFIGURATION
Some basic settings are to select by switches on the rear panel
or by switches and jumpers at the internal circuit boards of the
unit. These settings can occur general changes for operation
and should made by qualified engineering staff only.
Rear panel
Selection of the device address for serial
remote, 16 device addresses selectable
device needs a different address! The selected
address is valid after next power-on reset of the unit.
Internal
To set any internal jumper or switches it is necessary to open
the unit.
PLEASE DO NOT MAKE ANY ALTERATIONS WITH THE
MAINS STILL CONNECTED TO THE UNIT!
Loosen the screws on the top cover and remove. Then you can
see all jumper and switches as shown in the drawing below.
After setting of jumper or switches reassemble the unit in
opposite order.
Note: Within a line of remote controlled units every
SDI
Interface
B4x
DSP card
page 4-4 Operation manual b40, chapter 4 -location of parts and controls-
J1
SDI Split
J2
Download
Main board
4. LOCATION OF PARTS AND CONTROLS
Units with SDI interface can be used in SDI split mode:
Audio in path SDI input > direct AES output
Audio out path AES input > dsp processing > SDI output
(see also 2.5)
External device
SDI
in
AES
in
AES
out
AES
out
AES
in
SDI
out
dsp
B4x
processing
Split Mode
The selection of split mode (SDI DIRECT) is made by setting
jumper J1 on main board of the unit.
The 4-channel processors of b40 series fitted with SDI-interface
are compatible with the standard SMPTE 272M-AB. They
support 48 kHz synchronous audio sampling with 20 bit word
length.
The standard allows up to four groups each of four mono audio channels.
(Usually used by most of D-VTR's and other equipment is Group 1 with 48
kHz synchronous sampling.)
Group selection can be made for SDI-Input and SDI-Output
independently.
If the input and output groups are not equal, it can happen that the outgoing
embedded signal has errors. This is caused by some remaining data of
embedded audio in this group, which are always present in the input signal.
To be sure that there is only the selected output group embedded, the unit
can be set to CLEAN-Mode. In this mode all incoming embedded data for all
groups are deleted.
CLEAN-Mode is set with SDI-Output-button.
Press the button for some seconds. The LED will start to flash.
This indicates that the CLEAN mode is enabled.
Pressing the button again for some seconds will return to normal
mode.
4.4
SELECTION OF
SDI SPLIT MODE
4.5
CONFIGURATION
OF SDI INTERFACE
Operation manual b40, chapter 4 -location of parts and controls- page 4-5
5. OPERATION
p
p
OPERATION
The use of the digital audio toolbox b40 is very easy.
The setup or the programming of the digital audio toolbox b40 is
made by adjustment of various parameters and settings.
The description is made related to the functional blocks on the front
panel.
5.1 mode
5.2 recalling, saving and editing of presets
5.3 input selection
5.4 transparent mode
5.5 delay
5.6 input gain
5.7 matrix
5.8 output gain
5.9 fade time
5.10 bypass
Following syntax is used:
SYMBOL ACTIVITY
describes
how to use
button or
rotary knob
ush
turn
ush + turn
describes
action or function of
button or
rotary knob
unit is synchronized with AES input
unit is synchronized with AES input
VIDEO unit is locked to video signal at video
input (with 48kHz)
SDI unit is locked to SDI signal at SDI
input (with 48kHz)
Note: SDI sync is available only if SDI input is active! If SDI sync is selected
only the SDI input LED lits. All LED’s in sync display are switched off!
Selection of group of audio for SDI signal
IN
SDI audio group selection for deembedder
push
push
and independent to that
OUT
SDI audio group selection for embedder
All adjusted parameters of TRANSP, DELAY, INPUT GAIN, MATRIX,
OUTPUT GAIN and FADE can be stored into presets.
Recall of presets
push
push
turn
push
push
PREVIEW
PRESET
a blinking number 1..8 are to see
PRESET
PRESET
or
PREVIEW
As soon as one of the in the preset stored parameter is changed
by manually operation a star symbol appears beside the number
in the window to show that the previously loaded preset is not
more present.
until LOAD appears in the window.
to enter preset load mode, “L” and
to select the requested preset 1….8
to load selected preset. The preset number
appears in the window.
to save selected preset. The preset number
appears in the window.
push
Note: All former stored preset values are overwritten at the moment of new
storage into this preset! Just as after initialization of the unit all presets are
overwritten with factory presets.
PREVIEW
to exit without saving.
Editing of presets (PREVIEW mode, viewing and changing preset
content off-line without influencing running audio)
push
push
turn
PREVIEW
PRESET
a blinking number 1..8 are to see
PRESET
until EDIT appears in the window.
to enter preset edit mode, “E” and
to select the preset 1….8 to edit
push
push
PRESET
PRESET
to enter selected preset in edit mode
to save back selected preset. The running
preset number appears in the window.
or
PREVIEW
push
Note: All former stored preset values are overwritten at the moment of new
storage into this preset! Just as after initialization of the unit all presets are
overwritten with factory presets.
1/2 or 3/4 to switch for the input 1/2 or 3/4 between
push
push
DELAY means delaying of input signals. The delay can be changed in
steps of 1ms, within a range from 0...160 ms.
Adjustment of DELAY is channel independent. GAIN adjustment is
stored into the presets.
AES and SDI
TRANSPARENT
between input and output 1/2 or 3/4 or
to establish bit transparent connection
1/2 and 3/4 (necessary to pass non-audio
bit streams through without changing)
push
turn
with the same value
push
INPUT GAIN means linear amplification of input signals. The input gain
can be changed in steps of 0.1 dB , within a range from -15...+15 dB.
Adjustment of GAIN is channel independent. GAIN adjustment is
stored into the presets.
DELAYselection of channel
DELAYadjustment of delay for selected channel
MASTER to adjust all channels together
push
turn
MASTER to adjust all channels together
with the same value
push
GAINselection of channel
GAINadjustment of gain for selected channel
The matrix is to configure with the INPUT buttons and the OUTPUT
buttons.
1. selection of input channel by pushing related INPUT button
2. selection of requested output channel by pushing related OUTPUT
button.
This procedure is to repeat up to all necessary connection are routed.
The configuration of the matrix is stored into the presets.
After mixing together several input channels output level will be
increased. If excessive level at the output occurs one has to reduce
output level by reducing the OUTPUT GAIN (see also 4.8 Monitor).
The output gain can be changed in steps of 0.1 dB , within a range
from -15...+15 dB.
Adjustment of GAIN is channel independent. OUTPUT GAIN
adjustment is stored into the presets.
push
GAINselection of channel
GAINadjustment of gain for selected channel
turn
MASTER
with the same value
push
to adjust all channels together
B40 is offering a fader function. Each recall of preset is starting a fade
in or a fade out of audio depending on matrix setting
set a matrix point > fade in
reset a matrix point > fade out,
therefore crossfades are possible.
push
turn
BYPASS is bypassing the signal processing of the unit.
BYPASS is working for all configurations.
Should have remained the device no more operable and/or in the
program execution stand, recommends itself an initialization the
device.
During initialization, all storage areas important for the program
and registers are loaded with the factory setup and the program
is restarted.
Any button is to be held pressed in order to initialize the device
during switch-on of the device until the program started. To the
start of the program and at the completion of the displays (how
described in 6.1), the device is ready for operation with the
factory setup.
After an initialization of the device, all user presets and
adjustments are erased and/or overwritten by the factory
setup!
In digital video recording technology four digital audio channels
are the standard configuration. This channel capacity is used
increasingly in production and post-production for surround sound,
providing mix options and for multi-lingual productions.
Quite often it is necessary to make corrections or changes to the
audio which until now required the use of an expensive digital
audio mixer. These tasks can now be easily solved with the
Jünger Audio range of digital audio toolboxes. Simple processing
for up to four digital audio signals may be carried out quickly and
efficiently.
Using the SDI versions (SDI=Serial Digital Interface, digital
component video format with 270Mb/s transmission) b40 series
can process embedded audio.
The standard allows up to four groups each of four mono audio
channels. Usually used by most of D-VTR's and other equipment
is Group 1 with 48 kHz synchronous sampling. Synchronous
means that the audio clock is genlocked to the associated video.
Each channel can have up to 20 bits of resolution per audio
sample.
The 4-channel processors of b40 series fitted with SDI-interface
are compatibel with the standard SMPTE 272M-AB. They support
48 kHz synchronous audio sampling with 20 bit word length.
The Jünger Audio SDI interface provides for one group of four
audio channels to be extracted from or inserted into the SDI data
stream. To address a specific channel group the group selection is
possible (see 4).
The b40 provides an optional SD- or HD-SDI board. When you
switch on the device the plugged in interface will be indicated in
the display
FEATURES
• Bypass relay for SDI IN >SDI OUT
• Bit transparent for coded data streams (e.g. DOLBYE/20bit)
• De-embedder: user selectable de-embedding of one group
• Embedder: user selectable embedding to one of 4 groups
• SDI-SYNC: SDI input can be the clock source of the device
• For HD-SDI: Multi-Format HD/SD operation with auto detection
For the basic working mode the input of the digital audio processing
can be selected between AES/EBU or SDI (serial digital video with
embedded audio). The processed signals are present at both outputs
always - at AES/EBU and SDI.
There are two additional working modes using the SDI interface. SDI
Bypass is bypassing the SDI data stream. In this case only extracted
audio is processed and available at AES output. In Split Mode the
audio path is splitted. Embedded audio can be processed with external
equipment via AES interface.
Following illustration shows working modes:
The Digital Audio Toolbox b40 can be used remote controlled by
the programmable remote control panel brc.
Fig . 8.1: programmable remote control brc
All settings of the b40 toolbox can be made on the front panel of
the box or via the edit menus of brc remote control.
Working with the brc remote control panel means rapid changes of
preprogrammed presets by pushing one button only.
Fig . 8.2: installation with remote control brc
7.3
REMOTE CONTROL
WITH BRC
features of brc:
- universal remote control panel (RS-422)
- remote operation of several units (up to 16 devices from B40
series 2nd generation)
- remote panel is detecting connected units
- remote control panel brc as programmable
control unit with "one touch" access of presets
by hot keys
power supply : +5V DC
consumption : approx. 500 mA
dimension : 3RU, 4HP, 160mm depth (EUROPA size pcb)
temperature : 10°C to 40°C
humidity : 90%, non condensing
supported video standards:
HD 720/60 SMPTE 296M HD 1080/25 SMPTE 274M
HD 720/50 SMPTE 296M HD 1080/24 SMPTE 274M
HD 720/30 SMPTE 296M HD 1080/50 SMPTE 295M
HD 720/25 SMPTE 296M HD 1035/60 SMPTE 260M
HD 720/24 SMPTE 296M
HD 1080/60 SMPTE 274M SD 525/59.94 SMPTE 125M
HD 1080/50 SMPTE 274M SD 625/50 SMPTE 125M
HD 1080/30 SMPTE 274M
all HD-standards are supported also with their 1/1001-frame-rates
AUDIO :
audio data format : 24 Bit, transparent for C-Bit and U-Bit according to
AES3
audio sample rate : 48 kHz synchronous to video-carrier (SD and HD)
32 kHz ... 48 kHz asynchronous to video-carrier (HD
only)
latency : (deembedder + embedder)
HD : < 800µsec
SD : < 2,6 msec
GENERAL :
power supply : +5V DC
consumption : approx. 1.000 mA
dimension : 3RU, 4HP, 160mm depth (EUROPA size pcb)
temperature : 10°C to 40°C
humidity: 90%, non condensing
If the unit has to be serviced, please send it, ideally in the
original box, to:
JÜNGER AUDIO - Studiotechnik GmbH
Justus-von-Liebig-Str. 7
D - 12489 Berlin
GERMANY
Tel.: (*49) -30-677721-0
Fax.: (*49) -30-677721-46
9
operation manual b40, chapter 9 -Warranty and service information- page 9-1
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
Geräteart : 4ch digital toolbox
Type of equipment : 4ch digital toolbox
Produkt / Product : b40
Das bezeichnete Produkt stimmt mit den Vorschriften folgender EU-Richtlinie(n) überein:
The aforementioned product complies with the following Europaen Council Directive(s):
89/336/EWG (geändert durch 91/263/EWG und 92/31/EWG)
(changed by 91/263/EEC and 92/31/EEC)
Richtlinie der Rates zur Angleichung der Rechtsvorschriften der
Mitgliedsstaaten über die elektromagnetische Verträglichkeit
Council Directive on the approximation of the laws of the
Member States relating to electromagnetic compatibility
73/23/EWG (geändert durch 93/68/EWG)
(changed by 93/68/EEC)
Richtlinie des Rates vom 19. Februar 1973 betreffend elektrische
Betriebsmittel zur Verwendung innerhalb bestimmter
Spannungsgrenzen
Council Directive of February 19th 1973 concerning electircal
equipment for operation within certain voltage limits
Zur vollständigen Einhaltung dieser Richtlinie(n) wurden folgende Normen heran gezogen:
To fully comply with this(these) Directive(s), the following standards have been used:
EN 55022 : 1987
EN 50082-1 : 1993
EN 60065 : 2002
Dieser Erklärung liegen zugrunde : Prüfbericht(e) des EMV-Prüflabors
Interne Vorschriften zur Sicherheits-Prüfung
This certification is based on : Test report(s) generated by EMC-test laboratory
Internal regulations for safety check
MEB Messelektronik Berlin : Kalibrier- und Prüflabor
accredited EMC laboratory
Aussteller / Holder of certificate : Jünger Audio Studiotechnik GmbH
Justus-von-Liebig-Strasse 7
D - 12489 Berlin