Grass Valley AMX-3981 User Manual

DENSITÉ series

AMX-3981

3Gbps/HD/SD 8 AES

Audio & Metadata Embedder

Guide to Installation and Operation

M922-9900-310

16 June 2014

Miranda Technologies

3499 Douglas-B.-Floreani
St-Laurent, Québec, Canada H4S 2C6

Tel. [phone]
Fax. [phone]
www.miranda.com

© 2014 Miranda Technologies

GUIDE TO INSTALLATION AND OPERATION

Electromagnetic Compatibility

This equipment has been tested for verification of compliance with FCC Part 15, Subpart B requirements for
Class A digital devices.

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipmen t in a residenti al area is li kely to cause har mful
interference in which case the user will be required to correct the interference at his own expense.

This equipment has been tested and found to comply with the requirements of the EMC directive
2004/108/CE:

• EN 55022 Class A radiated and conducted emissions

• EN 55024 Immunity of Information Technology Equipment

• EN 61000-3-2 Harmonic current injection

• EN 61000-3-3 Limitation of voltage changes, voltage fluctuations and flicker

• EN 61000-4-2 Electrostatic discharge immunity

• EN 61000-4-3 Radiated electromagnetic field immunity – radio frequencies

• EN 61000-4-4 Electrical fast transient immunity

• EN 61000-4-5 Surge immunity

• EN 61000-4-11 Voltage dips, short interruptions and volta ge var iat ions immunity

Manufactured under licens e from Dolby Labor at ories . Dolby and the Double-D symbol are trademarks of Dolby
Laboratories.

How to contact us:

For technical assistance, please contact the Miranda Technical support center nearest you:

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Tel: [phone]
Fax: [phone]

[e-mail]

France

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Tel: [phone]
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Asia

9:30 am – 6:00 pm GMT+8
Tel: [phone]
Fax: [phone]

[e-mail]

China

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Tel: [phone]

[e-mail]

Europe, UK, Middle East, Africa

9:00 am – 6:00 pm GMT
Tel: [phone]
Fax: [phone]

[e-mail]

(Playout Automation Only)

9:00 am – 5:30 pm GMT
Tel: [phone]
Fax: [phone]

[e-mail]

Emergency After Hour s

Tel: [phone]

-or­Tel: [phone]

and choose menu
option 2

(worldwide)

Visit our web site at www.miranda.com

AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Table of Contents

1 AMX-3981 3Gbps/HD/SD 8 AES Audio & Metadata Embedder .............................................. 1

1.1 Introduction ......................................................................................................................................... 1

1.2 Features .............................................................................................................................................. 2

1.3 Functional Block Diagram ................................................................................................................... 3

1.4 Front Card-edge Interface ................................................................................................................... 3

2 Installation ................................................................................................................................ 4

2.1 Installation of Rear Connector Panels ................................................................................................ 4

2.2 AMX-3981 Card Installation ................................................................................................................ 5

2.3 Installation of the Optical Interface (option) ........................................................................................ 5

2.4 Rear Panels and Connectors .............................................................................................................. 5

2.4.1 Images of Rear Panel Connectors ......................................................................................... 5

2.4.2 Summary of rear panel connections ...................................................................................... 6

2.4.3 Details of rear panel connections .......................................................................................... 6

3 User Interface ......................................................................................................................... 10

3.1 Control options .................................................................................................................................. 10

3.2 Card-Edge Status LED ..................................................................................................................... 10

4 Local control using the Densité frame control panel .......................................................... 11

4.1 Overview ........................................................................................................................................... 11

4.2 Menu for local control ........................................................................................................................ 11

5 Remote control using iControl .............................................................................................. 12

5.1 The iControl graphic interface window .............................................................................................. 12

5.2 Video Input/Output panel .................................................................................................................. 15

5.2.1 Fiber Input/Output tab .......................................................................................................... 15

5.2.2 Deglitcher tab ....................................................................................................................... 15

5.2.3 Freeze tab ............................................................................................................................ 18

5.2.4 Timing tab ............................................................................................................................ 18

5.2.5 SFP Info tab ......................................................................................................................... 20

5.3 Metadata panel ................................................................................................................................. 20

5.3.1 LTC tab ................................................................................................................................ 20

5.3.2 GPI tab ................................................................................................................................. 21

5.3.3 AFD tab ................................................................................................................................ 22

5.4 Audio Processing panel .................................................................................................................... 24

5.4.1 Audio Proc – Levels tab ....................................................................................................... 26

5.4.2 Audio Proc – Fixed Delay tab .............................................................................................. 26

5.4.3 Audio Proc – Silence tab ...................................................................................................... 27

5.4.4 Downmix .............................................................................................................................. 27

5.4.5 AES Inputs tab ..................................................................................................................... 30

5.4.6 Status tab ............................................................................................................................. 30

5.5 Miranda ALC panel ........................................................................................................................... 31

5.5.1 Config tab ............................................................................................................................. 31

5.5.2 PGM1-8 tabs ........................................................................................................................ 32

5.6 Dynamic Processing panel ............................................................................................................... 34

5.7 Audio Modules panel ........................................................................................................................ 37

AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Dolby Metadata panel ........................................................................................................................ 37

5.8

5.8.1 Config tab ............................................................................................................................. 37

5.8.2 Input/Output tab .................................................................................................................... 45

5.9 Audio Output panel ............................................................................................................................ 46

5.9.1 CH 1-2, CH 3-4, … CH 15-16 tabs ....................................................................................... 46

5.9.2 Config tab ............................................................................................................................. 47

5.10 Loudness Panel ................................................................................................................................. 48

5.10.1 Loudness | Config panel ....................................................................................................... 48

5.10.2 Loudness | PGM panel ......................................................................................................... 49

5.10.3 Loudness | Logging Panel .................................................................................................... 51

5.11 Fingerprint panel ................................................................................................................................ 52

5.12 Reference panel ................................................................................................................................ 53

5.13 Monitoring panel ................................................................................................................................ 53

5.13.1 Thumbnails tab ..................................................................................................................... 53

5.13.2 RALM tab .............................................................................................................................. 54

5.14 Test panel .......................................................................................................................................... 55

5.15 Factory/Presets panel ........................................................................................................................ 56

5.15.1 Factory/Presets tab .............................................................................................................. 56

5.15.2 Automatic Preset Recall tab ................................................................................................. 60

5.16 Options panel .................................................................................................................................... 64

5.16.1 Dynamic Processing option: ................................................................................................. 64

5.16.2 ALC option ............................................................................................................................ 65

5.16.3 Loudness Measurement option ............................................................................................ 65

5.17 Alarm Config panel ............................................................................................................................ 66

5.18 Info panel ........................................................................................................................................... 69

6 Audio Modules ....................................................................................................................... 71

6.1 Dolby E and Dolby Digital decoder ................................................................................................... 71

6.1.1 Control tab ............................................................................................................................ 71

6.1.2 Dolby E tab ........................................................................................................................... 72

6.1.3 Dolby Digital tab ................................................................................................................... 73

6.1.4 PCM tab ................................................................................................................................ 73

6.2 Dolby Digital and Dolby Digital Plus encoder .................................................................................... 74

6.2.1 Shuffler Inputs ...................................................................................................................... 74

6.2.2 Configuration ........................................................................................................................ 74

6.2.3 Status:................................................................................................................................... 75

6.3 Dolby E encoder ................................................................................................................................ 76

6.3.1 Input and Output channel selection ...................................................................................... 76

6.3.2 Configuration ........................................................................................................................ 76

6.3.3 Status:................................................................................................................................... 77

6.4 Upmixing using Linear Acoustic Technology upMAXTM .................................................................... 78

6.5 N-channel ALC and upmix licensed by Linear Acoustic .................................................................... 80

6.5.1 Config tab ............................................................................................................................. 81

6.5.2 Basic tab ............................................................................................................................... 82

6.5.3 Advanced Configuration – ALC PGM 1 & 2 ......................................................................... 83

6.5.4 Upmix using Linear Acoustic UpMAXtm ................................................................................ 88

6.6 N-channel ALC licensed by Jünger Audio & upmix by Linear Acoustic ............................................ 89

6.6.1 ALC Models .......................................................................................................................... 89

AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Program Configurations ....................................................................................................... 89

6.6.2

6.6.3 Loudness Monitoring ............................................................................................................ 94

6.6.4 ALC PGMx Configuration ..................................................................................................... 95

6.6.5 Notes .................................................................................................................................... 98

7 Specifications......................................................................................................................... 99

ANNEX 1 – AMX-3981 Local User Interface ............................................................................. 101

ANNEX 2 – Installing the Optical Interface ............................................................................... 103

ANNEX 3 – Installing the Audio Modules ................................................................................. 105

ANNEX 4 – Dolby Digital Main Channel Output Functions ..................................................... 108

ANNEX 5 – AFD Flags ................................................................................................................ 109

ANNEX 6 - Loudness Logging and the Miranda Audio Loudness Analyzer ......................... 111

AMX-3981

GUIDE TO INSTALLATION AND OPERATION

AMX-3981

GUIDE TO INSTALLATION AND OPERATION

1 AMX-3981 3Gbps/HD/SD 8 AES Audio & Metadata Embedder

1.1 Introduction

The AMX-3981 is an advanced, high quality audio processor which embeds up to eight (8) AES signals into a
3Gbps/HD/SD video signal. Each AES input can accept different sample rates, or even asynchronous audio, and will
be resampled at 48 kHz by a sample rate converter, which can be manually or automatically disabled in the presence
of non-PCM audio.

The AMX-3981 can simultaneously process up to 32 channels of audio (16 channels from the discrete AES inputs,
and 16 channels of embedded audio). Functions include down-mixing, Proc Amp, channel shuffling and mixing.
Options include Automatic Loudness Control, dynamic processing (limiter, compressor, and expander) and loudness
measurement. The AMX-3981 generates audio/video fingerprints (via an iControl option) to detect and measure lip­sync errors in a broadcast facility.

The new loudness measurem ent option allows t he m easurem ent and log ging of up to 4 audio program s with i Control
Loudness Monitoring sof tware to analyze and report com pliance with respect to v arious loudness legis lations around
the world (See iControl Loudness Monitoring).

The AMX-3981 has one on-board socket for optional modules, including Dolby E and Dolby Digital decoding,
upmixing using Linear Acoustic upMAX™ technology, Dolby E encoding, Dolby Digital and Dolby Digital Plus
encoding. In addition to Mir anda’s own autom atic loudnes s control (ALC) s olution for up to eight pr ogram s, the AMX­3981 offers ALC using the AEROMAX™ technology by Linear Acoustic, or Level Magic™ by Jünger Audio,
implemented using optional modules.

The card will pass and delay automatical ly all 32 internal aud io channels to pres erve lip-s ync between the channe ls.
Each channel can be delayed independently to correct any lip-sync issues. All audio channels can be mixed and
shuffled to provide 16 channels for embedding in the video output.

An Automatic Preset Recall feature provides basic automation to select user preset based on the status of the
incoming audio.

When genlocked to the fram e reference using the inter nal URS signal, the AMX -3981 can handle video hot switches
at the input without losing sync at the output. In the absence of a video input, the card can still output synchronous
video and embed the discrete AES audio.

The card has a fram e buffer (not a frame sync) which allows an increas e in the video delay of up to 15 fram es to
compensate for the long a udio processing delay required b y some modules. F or applications which require a sm all
processing delay, the frame buffer can be bypassed to reduce the delay to a few micro-seconds.

The AMX-3981 can embed Linear Time Code (LTC) as ancillary Time Code (ATC) in 3Gbps/HD and DVITC in SD. Up
to 3 GPIO can be used as input, or output, to embed or extract GPI events to/from the Time Code user bits in
transport applications. They can also be used simultaneously to trigger the card’s user presets.

Dolby Metadata insertion in the VANC is possible from multiple sources, such as a Dolby E decoder module, an
embedded VANC stream , an external RS-422 link , or from the integrated Metadata ge nerator. All parameter s in the
Metadata stream can be probed and monitored. Dolby Metadata can be used to steer the behavior of the audio
downmix and upmix modules.

A fiber input/output c artridg e is offer ed as an opt ion on som e rear m odules. Once the cartri dge is ins talled, th e inputs
or outputs are selec table through the control interface. The input of the card allows you to select between f iber and
copper inputs. The outputs are via copper and fiber simultaneously (with appropriate fiber cartridge).

AMX-3981 | 1

GUIDE TO INSTALLATION AND OPERATION

1.2 Features

Video

• 3Gbps/HD/SD input

• Supports 3Gbps level A (mapping 1) and level B

• Audio/Video deglitcher to handle video hot switch at the input

• Automatic detection of input video loss and switchover to local grey for continuity of embedded audio

• Flexible HD/SD reference using the internal URS frame reference

• Minimum processing delay of 7.5 μs (HD), but additional delay can be added up to 15 frames

• Optional optical fiber module

• Compatible with iControl end-to-end A/V fingerprint analyzer for lip sync error detection and measurement

Audio

• 8 AES inputs

• Sample rate conversion for asynchronous AES inputs

• Full audio shuffling and mixing on a channel basis

• 32 channels internal audio processing

• Audio 5.1 surround down-mix to Lt/Rt or Lo/Ro

• Audio dynamic processor option (compressor/limiter/expander)

• Optional on-board Automatic Loudness Control with Miranda Wideband processing

• Optional loudness measurement of up to 4 audio program s and loggin g with iCon t r ol

o Loudness compliant to EBU R128, ATSC A/85 and ARIB TR-B32 (ITU-R BS.1770-3)

• Audio delay adjustments of up to 2 seconds to compensate for lip-sync issues

• A/V fingerprint generati on (an iControl option) for lip-sync measurement

• On-board socket for 1 optional expansion module:

o Dolby E and Dolby Digital decoder module
o Dolb y E encoder module
o Dolby Digital and Dolby Digital Plus encoder module

o Linear Acoustic upMAX ™ audi o stereo to 5.1 upmixing
o Linear Acoustic AEROMAX™ Automatic Loudness Control
o Jünger Audio LevelMagic™ Automatic Loudness Control

Metadata

• AFD (SMPTE-2016), VLI (RP-186) and WSS insertion

• Linear Time Code (LTC) embedding into DVITC (SD) or ATC (HD)

• Dolby Metadata insertion and extraction (SMPTE 2020)

• RS-422 serial data input & output to carry audio metadata

• GPI inputs & outputs that can be inserted or extracted from the embedded timecode user bits. They can also be

used for

automation, user preset recall and loudness reset.

2 | AMX-3981

1.3 Functional Block Diagram

SDA-1101 - SD DIGITAL VIDEO DISTRIBUTION AMPLIFIER

Select

Status

SELECT button

(Future use)

AMX-3981

Status LED

GUIDE TO INSTALLATION AND OPERATION

Figure 1.1 AMX-3981 Functional Block Diagram

1.4 Front Card-edge Interface

The front card-edge of the AMX-3981 incorporates
two elements:

• Status LED (see section 3.2)

• Select Button (see section 4)

Figure 1.2 Front card-edge layout

AMX-3981 | 3

GUIDE TO INSTALLATION AND OPERATION

2 Installation

2.1 Installation of Rear Connector Panels

Miranda Densité-series cards are each associated with a rear connector panel, which must be installed in the Densité
frame before the card can be inserted.

The AMX-3981 card is designed to fit into Miranda’s Densité-3 frame. Four different rear connector panels are
available:

• AMX-3981-75D-3SRP Single-slot-width panel with 75Ω audio

• AMX-3981-110-3SRP Single-slot-width panel with 75Ω audio

• AMX-3981-75-3DRP-F Double-slot-width panel with 75Ω audio and fiber I/O

• AMX-3981-110-3DRP-F Double-slot-width panel with 110Ω audio and fiber I/O

See section 2.4 for details of the signal connections available on each of these panel types.
All cards and rear panels can be installed with the frame power on. The card has connectors which plug into a mid-

frame mother board for distribution of power and for connection to the controller card, and a second connector which
plugs directly into the rear connector panel for input and output.

The rear connector panel must be installed with the card out of the frame.

• To remove an existing card from the slot, tilt up the swivel handle on the front of the card to lever the connectors
apart, then use the handle to pull the card straight out of the slot.

Figure 2.1 Densité-3 frame – rear panel installation

To install the connector panel:

1. If a card is installed in the slot whose rear panel is being changed, remove it as described above.

2. Remove the existing panel (either blank or belonging to an existing card that is being changed) by releasing the
captive screw(s) at the bottom.

3. Position the new panel and secure it in place with the captive screw(s) at the bottom.

4 | AMX-3981

GUIDE TO INSTALLATION AND OPERATION

2.2 AMX-3981 Card Installation

Once a matching rear connector panel has been installed, install the AMX-3981 card as follows:

1. Open the front panel of the frame.

2. Slide the AMX-3981 card into the slot and push gently on the handle to seat the connectors.

When using a double-slot-width rear panel, the card should be inserted into the right-most of the two slots.
Inserting the card into the wrong slot will not damage the card, and will be flagged by the on-card status LED
flashing red to indicate that there is no connection to the rear panel.

3. Close the front panel of the frame.

2.3 Installation of the Optical Interface (option)

Refer to Annex 3 on page 103.

2.4 Rear Panels and Connectors

2.4.1 Images of Rear Panel Connectors

The four available rear panels are shown in the figure below, and their various inputs and outputs are described.

AMX-3981 | 5

GUIDE TO INSTALLATION AND OPERATION

♦ ♦

♦ ♦

3

3

♦ ♦

2

2

♦ ♦

2.4.2 Summary of rear panel connections

AMX-3981-75D-3SRP
AMX-3981-110-3SRP
AMX-3981-75-3DRP-F
AMX-3981-110-3DRP-F

Single-slot-width panel
Double-slot-width panel

CONNECTORS

3G/HD/SD IN
3G/HD/SD OUT
AES IN (110Ω) on D-SUB
AES IN (75Ω) on BNC
GPI (#) & RS-422 on D-SUB
GPI (#) and RS-422 A on RJ45

1
4
8

1 1 1
2 2 2

8

8 8

LTC IN on BNC
GPI (#), LTC IN and RS-422 A on RJ45
Fiber I/O module

2.4.3 Details of rear panel connections

3G/HD/SD SDI IN – Serial digital 3G/HD/SD input

Connect a serial digital video signal, conforming to the SMPTE 425M standard for 3G input signals, SMPTE 292M
standard for HD input signals or SMPTE 259M standard for SD input signals, to the BNC labeled 3G/HD/SD SDI IN.
The AMX-3981 will automatically switch to the detected line/frame rate format.

• Note: if you are using the Densité frame’s URS signal as the reference, then you must make sure that the input
SDI is locked to the URS.

3G/HD/SD SDI OUT – Serial digital video outputs

The AMX-3981 provides two or four (depending upon the rear panel in use) 3G/HD/SD SDI video outputs on BNC
connectors, labeled 3G/HD/SD OUT 1, 2, 3 and 4. The SDI video signal conforms to the SMPTE 425M, SMPTE
292M or SMPTE 259M-C standard. The same signal is carried on all outputs.

AES IN – Discrete AES3 digital audio inputs (8)

The AES inputs can be configured for 110 ohm impedance using a 26-pin D-SU B connec tor , or 75 ohm impedance
using BNC or DIN 1.0/2.3 connectors. Rear connector panels are available for each option.

6 | AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Rear Panel Type Connector(s) / Impedance

AMX-3981-110-3DRP-F
AMX-3981-110-3SRP
AMX-3981-75-3DRP-F
AMX-3981-75D-3SRP

D-SUB 26 (1) 110Ω
D-SUB 26 (1) 110Ω
BNC (8) 75 Ω
DIN 1.0/2.3 (8) 75 Ω

The pinout of the D-SUB connector for both 110Ω rear panels is
shown in this chart.

AMX-3981-110-3SRP

AMX-3981-110-3DRP-F

AES IN 1 (Hi)
AES IN 1 (Lo)
AES IN 2 (Hi)
AES IN 2 (Lo)
AES IN 3 (Hi)
AES IN 3 (Lo)
AES IN 4 (Hi)
AES IN 4 (Lo)
AES IN 5 (Hi)
AES IN 5 (Lo)
AES IN 6 (Hi)
AES IN 6 (Lo)
AES IN 7 (Hi)
AES IN 7 (Lo)
AES IN 8 (Hi)
AES IN 8 (Lo)
GND

Pin #

1

10

2

11

3

12

4

13

5

14

6

15

7

16

8

17

9, 18-26

Fiber I/O – Fiber-optic inputs and outputs

Rear panels whose part number ends in –F incorporate a fiber optic interface. The interface consists of two parts:

• A socket on the rear panel into which an SFP interface module is plugged

• An SFP (Small Form-factor Pluggable) module into which the optical fibers are plugged, and which incorporates

the optical/electrical interface
The optical fibers must be terminated in an LC connector.
See Annex 3 for instructions on installing and removing the SFP interface module, and for plugging and unplugging

the LC-terminated fibers.
The SFP modules supported by the AMX-3981 are:

AMX-3981 | 7

GUIDE TO INSTALLATION AND OPERATION

Function

Pin #

GPIO USER1

7

GPIO USER2

5

GPIO USER3

4

RS422-RX1-1

1

RS422-RX1-0

2

RS422-TX2-1

3

RS422-TX2-0

6

GND

8

SFP Modules Description

SFP-RR-LC Dual Rx module with LC connector
SFP-TT-S13S13-LC Dual Tx module at 1310 nm with LC connector
SFP-RT-S13-LC Single Rx and Tx transceiver module at 1310 nm with LC connector
SFP-R-LC Single Rx module with LC connector
SFP-T-S13-LC Single Tx module at 1310 nm with LC connector

GPI / RS-422 B / LTC – GPI I/O and Metadata I/O

GPI, RS-422 and LTC signals are carried on different connector types on the various rear panels available for the
AMX-3981, to make most effective use of the available panel area.

 AMX-3981-75D-3SRP and AMX-3981-110-3SRP

For the two single width rears, all three signals are carried on an RJ-45
connector, with the pinout as shown in the table:

Note that in this configuration, only two GPIO are available, while the double­width rear panels carry three

Function

GPIO USER1
GPIO USER2
LTC
RS422-RX1-1
RS422-RX1-0
RS422-TX2-1
RS422-TX2-0
GND

Pin #

 AMX-3981-75-3DRP-F

This rear panel carries three GPIO and RS-422 on an RJ45 connector and
LTC on a separate BNC connector. The pinout of the RJ45 is as follows:

7
5
4
1
2
3
6
8

8 | AMX-3981

 AMX-3981-110-3DRP-F

This rear panel carries three GPIO and RS-422 on a 15-pin D-SUB connector

and LTC on a separate BNC connector. The pinout of the 15-pin D-SUB is as

follows:

GUIDE TO INSTALLATION AND OPERATION

Function

GPIO USER1
GPIO USER2
GPIO USER3
RS422-RX1-1
RS422-RX1-0
RS422-TX2-1
RS422-TX2-0

GND

NC

Pin #

3
8

10

1
6
2
7

5,11,12,

14,15

4, 9, 13

AMX-3981 | 9

GUIDE TO INSTALLATION AND OPERATION

The LED will always show the most

Error Condition

LED Status

Green

Yellow

Red

Flashing

Red

3 User Interface

3.1 Control options

The AMX-3981 can be cont r olled in three different ways:

• The local control panel and its push-buttons can be used to move through a menu of parameters and to adjust
parameter values (see section 4).

• Miranda’s iControl system can be used to access the card’s operating parameters from a remote computer, using
a convenient graphical user interface (GUI) (see section 5).

• Miranda’s RCP-200 panel (check for availability).

3.2 Card-Edge Status LED

The status monitor LED is located on the front card-edge of the AMX-3981, and is visible through the front access
door of the DENSITÉ frame. This multi-color LED indicates the status of the AMX-3981 by color, and by
flashing/steady illum ination.

The chart shows how the various error conditions that can be flagged on the AMX-3981 affect the LED status.

• If a cell is gray, the error condition cannot cause the LED to assume that status

• If more than one LED status is possible for a particular error condition, the status is configurable.

See Sec t ion 5.16 for details.

• The factory default status is shown by a 

severe detected error status that it is
configured to display, and in the chart
error severity increases from left to
right, with green representing no
error/disabled, and flashing red the
most severe error.

If the LED is Flashing Yellow, it
means that the card is selected for
local control using the Densité frame’s
control panel. See Section 4 for
details.

Cooling Fan 1 error
FPGA error
Dataflash Error
No Rear
AES Receiver 1 error

AES receiver 8 error
Reference missing
Reference mismatch
Test Mode
Carrier 1 detect error
AES 1 Presence error

AES 8 Presence error
Silence detected Channel 1 

Silence detected Channel 32






















10 | AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Figure

4 Local control using the Densit é fra me control panel

4.1 Overview

Push the SELECT button on the AMX-3981 card edge
(see Section 1.4) to assign the local control panel to
operate the AMX-3981. Use the control panel buttons
to navigate through the menu, as described below.

All of the cards installed in a Densité frame are
connected to the frame’s controller card, which handles
all interaction between the cards and the outside wor ld .
There are no operating controls located on the cards
themselves. The controller supports remote operation
via its Ethernet ports, and local operation using its
integrated control panel.

The local control panel is fastened to the front of the
CPU-ETH2 control ler car d, and when installed is located in the front center of the frame, positioned in front of the
power supplies. The panel consists of a display unit capable of displaying two lines of text, each 16 characters in
length, and five pushbuttons .

The panel is assigned to operate any card in the frame by pushing the SELECT button on the front edge of that card.

• Pushing the CONTROLLER button on the control panel selects the Controller card itself.

• The STATUS LED on the selected card flashes yellow.

The local control panel displays a menu that can be navigated using the four pushbuttons located beside the displ a y.
The functionality of the pushbuttons is as follows:

[+] [–] Used for menu navigation and value modification
[SELECT] Gives access to the next menu level. When a parameter value is shown, pushing this button once

enables modification of the value using the [+] and [–] buttons; a second push confirms the new value

[ESC] Cancels the effect of parameter value changes that have not been confirmed; pushing [ESC] causes the

parameter to revert to its former value.

Pushing [ESC] moves the user back up to the previous menu level. At the main menu, [ESC] does not

exit the menu system. To exit, re-push the [SELECT] button for the card being controlled.

If no controls are operated for 30 seconds, the controller reverts to its normal standby status, and the selected card’s
STATUS LED reverts to its normal operating mode.

4.2 Menu for local control

The AMX-3981 has operating parameters which may be adjusted locally at the controller card interface.

• Press the SELECT button on the AMX-3981 front card edge to assign the Densité frame’s local control panel
to the AMX-3981

• Use the keys on the local control panel to step through the displayed menu to configure and adjust the AMX-

3981.

The complete menu structure is shown in Annex 1 to this document, beginning on page 100.

4.1 Densité Frame local control panel

AMX-3981 | 11

GUIDE TO INSTALLATION AND OPERATION

2

Figure

5 Remot e c ont rol using iControl

The operation of the AMX-3981 may be controlled using Miranda’s iControl system.

• This manual describes the control panels associ ated with the AMX-3981 and their use.

• Please consult the iControl User’s Guide for information about setting up and operating iControl.

In iControl Navigator or iControl Websites, double-click on the AMX-3981 icon to open the control panel.

5.1 The iControl graphic interface window

The basic window structure for the AMX-3981 is shown in figure 5.1. The window identificat ion li ne gives the c ard type
(AMX-3981) and the slot number where the card is installed in its Densité frame.

There are four main sections in the window itself, identified in figure 5.1:

Section 1. The top section displays six icons on the left. These icons report different statuses such as card
communication status, input signal and reference signal format and statuses. In some instances, they relate to
conditions defined through parameters settings.

Icon # 1 2 3 4 5 6
Move the mouse over an icon and a status message appears below the icon providing additional information.

5.1 AMX-3981 iControl graphic interface window

12 | AMX-3981

GUIDE TO INSTALLATION AND OPERATION

If there is an error, the error status message appears in the message area w ithout mouse-over.

• If there are multiple errors, the error messages cycle so all can be seen

• The icon whose status or error message is shown is highlighted with a mauve background

The table below describes the various status icons that can appear, and how they are to be interpreted.

• In cases where there is more than one possible interpretation, read the error message in the iControl window to
see which applies.

Table –iControl Status Icon interpretation

Icon #1 – Manual Card Configuration

Remote card control activated. The iControl interface can be used to operate the card

(green)

Local card control active, The card is being controlled using the Densité frame control
panel, as described in section 4. Any changes made using the iControl interface will have

(yellow)

no effect on the card.

Icon #2 – Input status

Signal detected and valid.

(green)

• Beneath the icon, the format will be indicated as 3G, HD or SD, and the specific
format details will be listed if the cursor is moved over the icon.

Signal absent

(red)

No rear
Reference mismatch
Video/TRS error

Icon #3 – Operation Mode

Operation mode: process – normal processing of the input signal

(green)

Operation mode: TEST – color bar and audio test tones enabled (see Sect. 5.13)

(yellow)

(yellow)

Operation mode: Manual Freeze ON (see Sect. 5.2 – Freeze tab)

AMX-3981 | 13

GUIDE TO INSTALLATION AND OPERATION

(red)

Icon #4 – Audio Status

Audio OK

(green)

Yellow alarm condition detected on 1 or more channels

(yellow)

Red alarm condition detected on 1 or more channels

Icon #5 – Reference

Reference OK. Mouse over to see the source of the reference, and its format, e.g.
External, NTSC

(green)

Reference missing. The reference is required for correct deglitcher operation.

(red)

Reference absent

(gray)

Icon #6 – Operation Mode

Hardware OK

(green)

Hardware Health Monitorin g (Fan1, Fan2, Hardware fault detected)

(red)

If this icon appears red, return the card to Miranda and specify the error code.

Section 2. The left portion of the window contains all the parameter groups, which become highlighted when they are
selected; the main panel (4) then displays the group’s set of parameters. Each of the groups is described in detail
below.

Section 3. The lower left corner of the window identifies the Preset currently in use or “Custom” if none is applicable.
Section 4. The main panel contains all the parameters specific to the group selected. It may contain several tabs to

help manage the different parameters.
Each of the panels assoc iated with the groups access ed from the buttons in Section 2, and show n in Section 4, is

described individually in the following sections.

14 | AMX-3981

5.2 Video Input/Output panel

Figure

Figure

This panel allows input selection, control of the deglitcher and
freeze functions, and timing delay.

Input Select: use the pulldown list to select between the
copper input (BNC) and the fiber optic input (if available)

• The list will only be active if an Optic Fiber module is
installed in the rear panel. Otherwise it will be grey and
locked as BNC

GUIDE TO INSTALLATION AND OPERATION

5.2.1 Fiber Input/Output tab

This tab will only appear when a fiber optic module is
installed in the rear panel. The panel will be appropriate to
the type of module installed.

• The “Detected” data box shows the type of module that
the AMX-3981 has identified.

• The controls that appear allow the inputs and outputs
on the fiber module to be configured.

Options: OFF or ON

5.2.2 Deglitcher tab

When the Deglitcher is active, the card supports a
hot-switch between two signals without pr oduc ing a
freeze on the frame buffer, and without producing
artifacts on the output.

• In order to enable the deglitcher, the URS
signal must be selected as the reference in
the Reference panel (see section 5.11)

Deglitcher: select OFF or ON from the pulldown

5.2 Video Input/Output panel

Figure 5.3 Fiber Output tab

5.4 Video Input/Output – Deglitcher tab

AMX-3981 | 15

GUIDE TO INSTALLATION AND OPERATION

Ref signal

Signal A
Signal B
Signal C
Signal D
Signal E
Signal F
Signal G

H=½ line

H=½ lineH = 0

Line = x

H = 0

Line = x+1

clean switch region #2

H = 0

Line = x-1

clean switch region #3

clean switch region #1

H=0
V=1

H=0
V=1

H=0
V=1

H=0
V=1

H=0
V=1

H=0
V=1

H=0
V=1

For this mode to function correctly, the following requirements must be met:

The offset from the VREF can be variable, but a distance of greater than 10 lines could create an artifact in the active
video. If the two signals are more than 1 line apart, we will see a vertical jump at the moment of switching that is
proportional to the number of vertical lines of offset between the two signals. This will last for only one frame. There
may also be problems in the transition when in the AFD automatic or forced mode.

When a reference is present and the deglitcher is active, the card reports the difference in timing between the input
and the reference when the transition occ ur s.

To perform a glitch-free switch between two
sources, they must be in the same clean switch
region. A clean switch region is contained within
± ½ line about an H=0 point in the reference
signal, as shown by the dotted lines in the
figure. There is a clean switch region centered
on every H interval. As you can see, vertical
alignment with the reference is not important for
the deglitcher to operate properly.

Referring to the figure on the right, you may
switch between signals A, B or C, without any
glitch, and also between signals DE and
signals FG. Any other transition, like AD,
will cause a vertical image shift for one frame.

To determine whether a clean hot switch is
possible, you need to determine whether the two
input signals lie in the same clean switch region. There are two ways to measure the position of the signals with
respect to the reference:

When the deglitcher mode is on, each of these sources will display the alignment offset between the reference signal
and the input signal. Knowing the offset for both input signals, you can determine if they are in the same clean switch
region. If so, any hot-switch between those two signals will be glitchless.

To determine the limits of a clean switch region, you must know the input’s line length in µs. The first region is
delimited by +½ line and -½ line of the reference. For exam ple, with an SD (525) signal the line length is 63.5 µs and
so the first region lies between -31.76 µs and 31.76 µs. Other regions can be found by adding or removing a multiple
of line length to the two boundaries.

Example: for an SD (525) input signal, we have these clean switch regions:

-1 line and -31.76 µs to 0 line and -31.76 µs

16 | AMX-3981

• The two inputs must be synchronized to the reference

• They must be phased within one line of each other

• They must be phased to within +/- ½ line of the HREF of the reference signal

• If the reference is missing when the deglitcher is activated, the Input timing to reference box will indicate

“Missing reference” in red, and the reference status icon at the top of the iControl window will turn red and show
the message “Reference missing”.

• If the deglitcher is OFF, the reference status icon will be grey, and its message will read “Reference absent”

• Use the deglitcher tab in iControl (InputDeglitcher)

• Use the controller menu in Annex 1 (videotimingin timing to ref).

GUIDE TO INSTALLATION AND OPERATION

Ref signal

Signal A
Signal B

H=½ line H = 0

Line = 0

H = 0

Line = -1

H=0
V=1

H=0
V=1

-25us

-31.76us

-35us

clean switch region #1 clean switch region #2

Ref signal

Signal A
Signal B

H=½ line H = 0

Line = 0

40us

31.76us

50us

clean switch region #2

H=½ line

H=0
V=1

H=0
V=1

H = 0

Line = 1

H=½ line

clean switch region #3

95.28us

0 line and -31.76 µs to 0 line and 31.76 µs
0 line and 31.76 µs to 1 line and 31.76 µs
etc.

Practical examples:

Example 1: we have two SD (525) sources, one that indicates an offset of -25 µs with respect to the reference (A)
and the other an offset of -35 µs (B). We know that a clean switch region limit is present at -½ line, w hic h corresponds
to -31.76 µs. We can now determine that this switch will not be clean, because the two sources are on opposite sides
of the limit, and are therefore not in the same clean switch region.

Example 2: We have two SD (525) sources, one that indicates an offset of 50µs with respect to the reference (A) and
the other an offset of 40µs (B). We know that a clean switch region limit is present at + ½ line and another one at ½
line plus one line. These correspond to 31.76µs and 95.28µs. We can now determine that this switch will be clean,

because the two sources are inside the same clean switch region.

AMX-3981 | 17

GUIDE TO INSTALLATION AND OPERATION

Freeze Type

Auto Freeze Mode

Manual Freeze Mode

Figure

Figure

5.2.3 Freeze tab

Freeze type: This is a pull-down menu with four
options – FIELD 1, FIELD 2, FRAME and BLACK. It
determines the manner in which the AMX-3981
responds to a manual freeze, a video input switch
(“hotswitch” as defined by SMPTE recommended
practice RP-168, revised January 2002), a loss of
input signal or other input errors. The four possible
options yield the following results:

5.5 Video Input/Output – Freeze tab

• Field 1

• Field 2

• Frame

• Black

Auto Freeze: This pulldown (ON/OFF) enables or disables the auto freeze function. In Auto Freeze mode, a
reference must be present to ensure a glitchless output when a freeze is activated. There are only two freeze
possibilities in Auto mode: freeze to las t va li d Field or freeze to black. When Auto Freeze mode is disabled, the
content of the active picture will reflect whatever garbage is present at the input but, if a reference is present, the
output synchronization will be maintained to avoid unlocking downstream equipment.

Activate Manual Freeze: Select this checkbox to immediately freeze the output according to the selected Freeze
Type mode.

Note: The manual freeze setting is saved in the non-volatile memory of the card. If the manual freeze is activated and
the power is cycled, the card will start in freeze mode at the next power-up and the output will be invalid. Just turn off
the manual freeze to restore the output.

In all cases, audio will be muted when there is an
input error. See the audio section for more
information.

Freeze to last valid FIELD

Freeze to BLACK

Freeze to last valid FIELD 1
Freeze to last valid FIELD 2
Freeze to last valid FRAME

5.2.4 Timing tab

The Timing tab provides access to timing
adjustments which affect the signal outputs.
There are three slider controls, each with a data
reporting box which shows the current value, and
into which values can be typed directly. The total
delay is reported at the top of the window.

Vertical (lines): With this adjustment, a value
ranging from –16 to +16 lines compared to the
reference or the processing delay may be set.
This adjustment can be used in conjunction with
the horizontal timing adjustment.

5.6 Video Input/Output – Timing tab

18 | AMX-3981

GUIDE TO INSTALLATION AND OPERATION

Horizontal (µsec): With this adjustment, a value ranging from zero to the equivalent of 1 horizontal line in the current

operating format compared to the reference or the frame boundary may be set.
Frame Delay (Frames): This parameter affects the overall processing delay of the card. It adds supplemental frame

delay to the current processing delay. This parameter will add a delay ranging from 1 to 15 interlaced frames (steps of
33 ms in 59.94 Hz and 40 ms in 50 Hz) to the current processing delay. Without a reference, the normal processing
delay is 1 frame. You can extend this delay up to16 frames using this slider. With a reference, up to 15 frames can be
added to the frame sync delay which depends on the timings between the input and the reference.

Note that, in order to compensate for the processing delay of a Dolby E and Dolby Digital decoder or a Dolby E
encoder installed on the AMX-3981 card, the frame delay must be set to at least one (1) frame. On the other hand, if
a Dolby Digital and Dolby Digital Plus encoder is installed, the frame delay must be set to at least seven (7) frames for

59.94 Hz formats and at least six (6) frames for 50 Hz formats.

Minimum Delay Mode

The minimum delay mode minimizes the processing delay of the video. The audio processing delay varies depending
on the presence of options. The following charts show the processing delay of audio and video for different video
formats and options.

Video Processing Delay:

SD: 20 µs
HD: 7.5 µs
3G – Level A: 3.8 µs
3G – Level B: 4 Lines + 4 µs

Audio Processing delay:

ALC DP Delay Delay using AES In
3G/HD/SD No No 2 ms 4 ms

3G/HD/SD No Yes 3 ms 5 ms
3G/HD/SD Yes No 3 ms 5 ms
3G/HD/SD Yes Yes 4 ms 6 ms

Note that using the AES inputs adds 2 ms to the delay, as shown in the table

Note: When minimum delay is active the following features will be disabled: AFD auto mode, frame buffer, A/V
deglitcher, freeze functions and DOLBY E alignment.

Enable the Minimum Delay checkbox to place the AMX-3981 in this mode. A pop-up warning will appear, explaining
the implications of using this mode:

AMX-3981 | 19

GUIDE TO INSTALLATION AND OPERATION

F

Figure

5.2.5 SFP Info tab

When an SFP module is detected in the rear panel socket of
this AMX-3981, this tab shows identifying information:

• Type

• Part Number

• Serial Number

• Date Code

Additionally, some parameters are measured and their values
displayed here:

• Temperature

• Voltage (V)

• Optical Power (dBm)

• Wavelength (nm)

5.7 Video Input/Output – SFP Info tab

5.3 Metadata panel

This panel contains three tabs that give access to metadata processing on the AMX-3981 card:

• LTC

• GPI

• AFD

5.3.1 LTC tab

This tab controls LTC timecode embedding into the output
SDI data stream.

The Status icons indicate the presence of different time code
formats:

• LTC input (on the rear panel)

• DVITC (SD) embedded in the SDI input

• ATC-LTC (3G/HD) embedded in the SDI input

• ATC-VITC (3G/HD) embedded in the SDI input

The LTC Timecode Embedding section provides resources
to configure the embedding process.

Delay: [0, 1, 2, 3 frames]
SD Insertion Line: Select the line in which to embed LTC in

the SD-SDI output s ign al. Availa ble only when SD is

20 | AMX-3981

igure 5.8 Metadata Panel – LTC tab

GUIDE TO INSTALLATION AND OPERATION

Figure

detected at the input.
[10-20 for 525; 7-22 for 625]
SD Duplicate: Select the line in which to embed a duplicate LTC in the SD-S DI out put signa l. Avai lab le on l y when SD
is detected at the input.

Insertion: In the case of 3H/HD signals, select OFF to disable insertion and pass incoming signals through
unchanged, or BOTH to embed both ATC-VITC and ATC-LTC from the LTC input on the rear panel into the output.

5.3.2 GPI tab

The AMX-3981 can both de-embed and embed GPI data
from/to timecode. As well, GPI inputs can be used to load
user presets on the AMX-3981 card, or reset loudness
measurements.

GPI status: the icons show the status of the three GPI
inputs on the rear panel.

Timecode Presence: Shows the time codes that are
available for embedding / de-embedding the GPI data.
Embed and De-embed are shown separately for SD
timecode, since they can be on different line numbers.

Load Presets: Use the pulldown lists to select what will
occur when each of the three rear-panel GPI inputs is
activated and released. Options are:

• Do nothing

• Load one of the five User Presets

• Reset the loudness measurement (see RESET on

page 49)

GPI Embedding / De-embedding: set up the embedding or
de-embedding of GPI data in the output and input data

streams. For each of the three GPIs:
Mode: use the pulldown list to select the operating mode for this GPI:

• OFF – the GPI is passed through untouched

• De-embed – a pre-defined user binary group bit from timecode within the incoming signal is de-embedded and

appears on the rear-panel GPI port
 When De-embed is selected, use the Bit pulldown list to select which of the user binary group bits (1-16) will

be extracted to this GPI.

• Embed – the data placed on the rear-panel GPI port is embedded to a pre-defined user binary group bit within
timecode in the outgoing data stream.
 When Embed is selected, use the Bit pulldown list to set which of the user binary group bits (1-16) will be

used to carry the GPI data.

GPI Embedding Config

SD Insertion Line (SD signals only): Select the line into which the GPI data will be embedded [10-20 for 525 and 7-22
for 625] provided DVITC time code is present.

Insertion (3G/HD signals only): select the ATC format [ATC-VITC, ATC-LTC or BOTH] into which the GPI data will be
embedded, provided the selected ATC format is present

5.9 Metadata Panel - GPI tab

AMX-3981 | 21

GUIDE TO INSTALLATION AND OPERATION

Figure

If the source has no time code, a fixed time code of 00:00:00:00 will be generated in the appropriate format – DVITC
(SD), ATC-VITC or ATC-LTC (HD) – to carry the GPI and ensure that it is embedded.

Note that to accommodate on-card processing requirements, the GPI should be asserted no later that 1 ms before the
switch line in order to ensure that it is embedded in the next field.

GPI De-embedding Config

SD Extract Line (SD signals only): Select the line from which the GPI data will be de-embedded [10-20 for 525, 7-22
for 625] provided DVITC timecode is present.

GPI Source Type (3G/HD signals only): select the ATC format from which GPI data will be de-embedded [ATC-VITC,
ATC-LTC] provided the selected ATC format is present.

GPI Latch Mode: When no valid time code with embedded GPI data has been detected, the user has the option of
releasing the GPI outputs (Latch mode OFF), or holding the last valid de-embedded values (Latch Mode ON).

5.3.3 AFD tab

The Active Format Descriptor (AFD) flag is used to identify the aspect ratio and protected areas of a video signal. The
AMX-3981 manages the transfer of the AFD flag between its input and output, but does not use the AFD flag to
perform any picture manipulation. The AFD flag is implemented differently in HD and SD:

• In HD, the AFD flag (SMPTE 2016) is sent as an ancillary packet, normally found on line 11 in the vertical ancillary
space.

• In SD, the AFD flag is sent as a Video Line Index (VLI) signal (RP 186), as a Wide Screen Signaling (WSS) signal
(ITU-R BT.1119-2) for 625 only, and as an AFD packet (SMPTE 2016).

Note: The term AFD is used to represent all three types of
flags – SMPTE 2016 ancillary packet, VLI, and WSS.

The two graphics at the top of the panel show the input and
output AFDs and indicate the status (e.g. detected,
inserted). See ANNEX 6 – AFD Flags on page 109 for
information about AFD flags and terminology.

5.3.3.1 Config section

Presence: The status indicator turns Green when AFD is
detected on the input signal. On an SD input, the status
indicator will indicate the presence of AFD flags carried as
selected by the Source pulldown below, i.e. AFD, VLI or
WSS (for 625 sources only)

Mode: use the pulldown list to specify how AFD information
will be handled. Available choices are:

• Pass – pass the incoming AFD flag through without

change

• Insert – insert the ‘Forced’ AFD flag into the output,

overwriting any incoming flags

• Auto – if incoming flags are detected, pass them

through, otherwise, insert the “Default” flag

• Blank – ensure that no AFD flags are embedded in the

output stream.

22 | AMX-3981

5.10 Metadata - AFD tab

GUIDE TO INSTALLATION AND OPERATION

Figure

Source: Selects the source of AFD information – options are AFD (SMPTE 2016), VLI (SD only) or WSS (for 625
sources only).

Insertion Line: The Insertion line is used to select on which line in the VANC the AFD packet (SMPTE 2016) will be
inserted. It is not necessary to specify the detection line since the card will automatically detect the incoming packet.

Insertion: The Insertion pull-down menu is used to enable or disable the insertion of AFD on the output. This feature
makes possible AFD conversion (SMPTE 2016 to VLI, VLI to WSS, VLI to SMPTE 2016, etc …) by allowing the user
to select the type of AFD flag to insert regardless of the programmed AFD source type:

• During HD operation, the Ancillary Aspect Ratio packet (SMPTE 2016) may be inserted. There is no AFD
conversion during HD.

• During SD operation, the Ancillary Aspect Ratio packet (SMPTE 2016), VLI, or WSS for 625 may be inserted

Default/Forced: this text box is labeled according to the mode selected in the Mode pulldown above

• In AUTO mode, it is labeled DEFAULT and shows the current default AFD code to be used if no valid AFD code is

detected at the input.

• In INSERT mode, it is labeled FORCED, and shows the code that is forced onto the output regardless of the
actual input code or if one is present

Change: Click the Change button to open the Select AFD panel showing the available AFD codes that could be used
as the default code/f orc ed AFD flag dur i ng AUT O /INS ERT modes. Click on one to select it, then click Apply or OK at
the bottom of the panel.

Keep Last: Select this checkbox to use the last AFD code detected at the input as the default code to be used in the
Auto mode when no AFD flag is detected. This box is disabled in the Insert mode.

5.3.3.2 AFD Substitution Table

In the Auto mode, it is possible to set up a systematic AFD substitution scheme, where incoming AFD flags can
always be replaced by different flags, according to the AFD Substitution table.

• Select the Enable AFD Substitution checkbox to use this feature. The checkbox is only available in Auto mode

Click the Edit Table… button to open the AFD Substitution Table

5.11 AFD Substitution table

AMX-3981 | 23

GUIDE TO INSTALLATION AND OPERATION

• The table has two tabs, one for SD inputs, and one for HD inputs.

• The table in each tab lists all possible Input AFD flags for that format, and beside each is a Replacement AFD

pulldown list that also lists all possible AFD flags.

• If the Replacement AFD does not match the Input AFD, the Replacement AFD
name is colored, so that it is immediately obvious which AFDs will be substituted.

Note: AFD substitution is ignored when no source flag is detected at the input. In this case, the Default flag is used.

5.3.3.3 Error and Warning Messages (SD only)

During SD operation, situations may arise when a conflict has occurred or may occur due to the enabling of certain
metadata parameters such as time code insertion, SMPTE 2016/VLI insertion, or Dolby Metadata insertion.

• A warning message will appear at the bottom of the Metadata / AFD panel.

• See for an example.

Here is a list of all possible messages that may be displayed and a description of the error or potential conflict.

“Dolby Metadata/VLI line insertion conflict. Refer to the user manual.” [Error in red]

This error occurs when the AMX-3981 has been programmed to generate Dolby Metadata and VLI on the same
line. The VLI signal is placed on line 14 for 525 and line 11 for 625. Make sure to select a different line number for
Dolby Metadata insertion.

“AFD insertion may overwrite incoming TC on insertion line. Refer to the user manual.” [Warning in blue]

Incoming DVITC time code may unknowingly be replaced by the insertion of SMPTE 2016 AFD flag. In order to
avoid any problems, make sure the line number of any incoming time code is known.

“Dolby Metadata insertion may overwrite incoming TC/VLI on insertion line. Refer to the user manual.” [Warning in
blue]

Incoming DVITC time code or VLI signal may unknowingly be corrupted by the insertion of Dolby Metadata. In
order to avoid any problems, make sure the line number of any incoming time code is known. If Dolby Metadata is
inserted on line 14 in 525 or line 11 in 625, make sure no time code or VLI is present in the input video signal.

“Dolby Metadata insertion may overwrite incoming TC on insertion line. Refer to the user manual.” [Warning in blue]

Incoming DVITC time code may unknowingly be corrupted by the insertion of Dolby Metadata. In order to avoid
any problems, make sure the line number of any incoming time code is known.

“Dolby Metadata/AFD insertion may overwrite incoming TC on insertion line. Refer to the user manual.” [Warning in
blue]

Incoming DVITC time code may unknowingly be replaced by the insertion of Dolby Metadata or the SMPTE 2016
AFD flag. In order to avoid any problems, make sure the line number of any incoming time code is known.

“VLI insertion may overwrite incoming Dolby Metadata on insertion line. Refer to the user manual.” [Warning in blue]

Incoming Dolby Metadata may unknowingly be corrupted by the insertion of the VLI flag. In order to avoid any
problems, make sure no Dolby Metadata is present on line 14 in 525 or line 11 in 625 when VLI is inserted.

5.4 Audio Processing panel

The Audio Processing panel provides full audio processing and delay parameters for up to 32 channels. The first 16
channels come from the embedded input channels. The second set of 16 channels comes from the output channels of
the following modules:

24 | AMX-3981