Snell & Wilcox IQBRK00/01 User manual

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.1
IQBRK00/01
AES Break Out Module with Audio DAC
Table of Contents
Module Description ............................................. 2
Rear Panel Views................................................. 2
Block Diagram...................................................... 5
Features................................................................ 5
Technical Profile.................................................. 6
INPUTS.................................................................. 8
Serial Digital Video Inputs ........................... 8
AES Inputs................................................... 8
GPI I/O (-2 and -2A only)............................. 8
OUTPUTS.............................................................. 9
Serial Digital Video Outputs ........................ 9
AES Outputs................................................ 9
Analog Audio Out ........................................ 9
25 Way D Type Connection Details .......... 10
CARD EDGE INDICATORS ................................ 12
RollCall PC Control Panel Screens.................. 13
Video ......................................................... 13
ProcAmp.................................................... 14
De-embed Pair 1-4 and 5-8....................... 15
AES Input .................................................. 15
Audio Input Delay ...................................... 16
Audio Mix 1, 2, 3 and 4.............................. 16
Audio Bus A and B/Audio Bus C and D .... 17
Audio Embed............................................. 17
AES Out..................................................... 18
Analog Out................................................. 18
Audio Delay Setup..................................... 19
Audio Setup ............................................... 20
Video Delay ............................................... 22
VBI & HANC Blank(ing) ............................. 23
Caption & Pattern ...................................... 24
GPI............................................................. 25
RollTrack ................................................... 27
Memories................................................... 29
Logging 1, 2, 3 and 4................................. 30
ROLLCALL LOG FIELDS .......................... 31
Setup ......................................................... 33
Operation from an Active Control Panel ......... 35
MAIN MENU .............................................. 39
Video.......................................................... 39
Freeze........................................................ 40
User Mem(ories)........................................ 41
Audio.......................................................... 42
Video Delay…............................................ 49
Setup…...................................................... 50
ROLLCALL LOG FIELDS .......................... 61
IQBRK00 RollCall Commands .......................... 65
RollTrack Audio Delay Tracking ...................... 72
Appendix 1 The Firewall .............................. 77
Appendix 2 HANC & Embedding...................... 79
Manual Revision Record ................................... 80
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IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.2
Module Description
The IQBRK00 is designed to take up to two
embedded audio streams, break them out to AES
and then re-ingest the resultant signals. The end
result being the ability to insert a pure audio device
into an embedded stream. It can take its audio
input on a channel-by-channel basis from either
the dual AES, the embedded sources or a
combination of both. At the heart of this module is
a comprehensive processing block that provides a
powerful audio manipulation solution. The
processed audio can be embedded into the SDI
output as well as being fed to the AES outputs.
Each audio output can be fed with a separate
audio combination as necessary. The audio
sources are protected by a firewall that ensures
breaks in the incoming signal do not effect the
output. Video proc. amp. control and a video delay
of up to three frames make this a powerful solution
for the video stream. Audio features include fixed
and tracking delays, channel-level shuffling, proc.
amp controls and assignable four-input mixers for
combining audio sources. The user can choose to
combine audio channels from any of the input
sources - embedded streams and AES inputs.
Bypass paths allow for the passing, embedding or
de-embedding of non-PCM audio such as Dolby E.
Analog audio outputs are also provided to enable
either AES to analog audio conversion or analog
audio de-embedding.
Applications:
De-embed audio output to external dedicated
audio unit (e.g. Graphic EQ, reverb, chain of audio
boxes, etc.), then re-embed its output into the
video stream.
De-embed Dolby E audio stream, pass through
Dolby E decoder, re-embed resulting AES audio.
De-embed AES audio, pass through Dolby E
encoder, re-embed Dolby E stream.
AES to analog audio conversion
Analog audio de-embedding
Rear Panel Views
IQBRK0115-1A
I
Q
B
R
K
0
_
1
5
-
1
A
AES IN + AES / ANALOG AUDIO OUT
SERIAL
OUT
1
2
SERIAL
IN
IQBRK0117-2A
SERIAL IN 2
AES IN + AES / ANALOG AUDIO OUT
3
12
SERIAL IN 1
SERIAL OUT
IQBRK0
_17-2A

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.3
IQBRK0018-2A
AES IN
1
2
AES OUT
1
2
ANALOG AUDIO OUTPUTS
SERIAL OUT
IQBRK0
_18-2A
2 1
SERIAL IN
1
2
IQBRK0116-2
IQBRK0 _16-2
SERIAL IN 2
AES IN + AES / ANALOG AUDIO OUT
12
SERIAL IN 1
SERIAL OUT
GPI
This manual covers the following products:
IQBRK0018-2A AES Break out module with audio
DAC. Unbalanced audio connection. 2 SDI inputs,
2 AES inputs, 2 SDI outputs, 2 AES outputs, 4
analog audio outputs.
IQBRK0115-1A AES Break out module with audio
DAC. Balanced audio connection. 1 SDI input, 2
AES inputs, 2 SDI outputs, 2 AES outputs, 4
analog audio outputs.
IQBRK0117-2A AES Break out module with audio
DAC. Balanced audio connection. 2 SDI inputs, 2
AES inputs, 2 SDI outputs, 2 AES outputs, 4
analog audio outputs.
IQBRK0116-2 AES Break out module with audio
DAC. Balanced audio connection. 2 SDI inputs, 2
AES inputs, 2 SDI outputs, 2 AES outputs, 4
analog audio outputs.
Product Comparison
AES Inputs/Outputs
Product SDI
Inputs
Number Type
SDI
Outputs
Analog
Outputs GPI Width & Style
IQBRK0018-2A 2 2 U/B 2 4 BAL 1 Double A
IQBRK0115-1A 1 2 BAL 2 4 BAL No Single A
IQBRK0117-2A 2 2 BAL 2 4 BAL 1 Double A
IQBRK0116-2 2 2 BAL 2 4 BAL 1 Double 0

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.4
Note that there are two styles of rear panels available. They are not interchangeable between the two
styles of enclosures. However, the cards may be fitted into any style of enclosure.
‘A’ Style Enclosure
Rear panels with the suffix A may only be fitted
into the ‘A’ style enclosure shown below.
IQ
(Enclosure order codes IQH3A-E-0, IQH3A-E-P,
IQH3A-0-0, IQH3A-0-P)
(Enclosure order codes IQH3A-S-0, IQH3A-S-P)
‘O’ Style Enclosures
Rear panels without the suffix A may only be fitted
into the ‘0’ style enclosures shown below.
setup
lock save
recall
modules help
adjust
scroll
power
previous
return
home
control
information
display
select
power
(Enclosure order codes IQH1S-RC-0, IQH1S-RC-
AP, IQH1U-RC-0, IQH1U-RC-AP, Kudos Plus
Products)
power
OPEN
(Enclosure order codes IQH3N-0, IQH3N-P)
(Enclosure order codes IQH3U-RC-0, IQH3U-RC-P)

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.5
Block Diagram
O
u
t
p
u
t
s
inputs
SDI RX &
Equalisation
Video
Proc. Amp
SDI TX
Selective
Ancillary
Blanking
SDI RX &
Equalisation
I
/
O
GPI Control
and
TTL Pulse I/O
Built-in
Intelligence
AES RX &
Sample Rate
Conversion
AES RX &
Sample Rate
Conversion
ancillary data bypass
Network control monitoringintelligence, and
Demux
Demux
Channel
Router
Audio
Tracking
Delay
Assignable
Audio
Mixers
Assignable
Audio
Mixers
Assignable
Audio
Mixers
Assignable
Audio
Mixers
Audio
Firewall
Tone
Generator
Tone
Generator
Additional
Delay
Signal
Monitoring
1 X GPI
1
2
1
2
1
2
AES TX
AES TX
DAC
DAC
1
2
3
4
DAC
DAC
1
2
Ancillary
Data
Multiplexer
Channel
Proc. Amp
Channel
Proc. Amp
Channel
Proc. Amp
Channel
Proc. Amp
Adjustable
Pair Delay
Adjustable
Pair Delay
Features
Combine AES and embedded source channels
• Produce embedded, AES and analog audio
outputs
• Handles 2 AES streams or any eight
embedded input channels to total eight output
channels
• Handles up to 24 bit embedded audio present
on the incoming SDI stream, and embeds/de-
embeds to 20 bits
• Channel-level (Sub-frame) routing for selected
sources
• 4 off 4 channel assignable audio mixers
• Flexible audio delay including per pair fixed
delay, common fixed delay and tracking delay
• Up to 3 frames of video delay
• Firewall for processed PCM audio to provide a
continuous output
For more information about Firewall behavior please consult the appendix at the end of this manual.

IQBRK00/01 B12
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Technical Profile
Signal Inputs
Digital Video .......................2 x SDI (BNC)
Video Reference.................Composite video (BNC)
Unbalanced digital audio.....2 x AES/EBU, AC3, Dolby E (BNC)
Balanced digital audio ........2 x AES/EBU, AC3, Dolby E (25
Way D-Type)
Signal Outputs
Digital Video .......................SDI x 2
Unbalanced digital audio.....2 x AES/EBU, AC3, Dolby E (BNC)
Balanced digital audio ........2 x AES/EBU, AC3, Dolby E (25
Way D-Type)
Balanced analog audio ......4 channels (25 Way D-Type)
Control Interface
GPI .................................... 1x Closing contact I/O interface
(BNC)
Specifications
Video Internal Processing...4:2:2 with 10 bit data paths
Serial Input Return Loss .....Better than 15 dB to 270 MHz
Maximum Input Cable length
> 200 m (PSF1/2 or equiv. cable)
Serial Output Level .............800 mV ±5%
Output Overshoot ...............< 70 mV
Output Return Loss.............Better than 15 dB to 270 MHz
Output Jitter........................< 0.2 UI (with 10 Hz High pass filter
selected on 601 monitor)
Minimum Delay ..................6 µs
Delay .................................6 µs - 3 Frames + 5.5 µs
THD+N ...............................< -117 dB @ 700 Hz (24 bits) AES
to AES
Digital Audio Input (Balanced)
Connector/Format ..............25 W D
Sample Frequency .............25 – 96 kHz (48 kHz for Reference)
Input Cable Length .............>150 m of AES3 cable
Impedance..........................110 Ω
Digital Audio Input (Unbalanced)
Connector/Format...............BNC
Sample Frequency .............25 – 96 kHz (48 kHz for Reference)
Input Cable Length .............>500 m of RG59 cable
Impedance......................... 75 Ω
Digital Audio Output (Balanced)
Connector/Format.............. 25 W D
Level.................................. 3 V p-p typical into 110 Ω
Sampling ........................... 48 kHz Synchronous to SDI Stream
Digital Audio Output (Unbalanced)
Connector/Format.............. BNC
Level.................................. 1 V p-p typical into 75 Ω
Analog Audio Outputs
Output Level ...................... Adjustable +12 dBu to +24 dBu
Output Impedance ............ ~25 Ohms
THD+N .............................. -92 dB at 23 dBu, typical at 1 kHz
Conversion ........................ min 20-bit – 105 dB dynamic range
Sampling ........................... 48 kHz Synchronous to SDI stream
Power Consumption
Module Power Consumption
9.75 W

IQBRK00/01 B12
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Technical Profile (continued)
Card Edge Controls
NONE
Card Edge Indicators
SDI Input Loss....................Loss = Off, Good = Green
SDI Input Error....................Yellow = Unused input not at
current operating standard
AES Input Present ..............1 x LED per pair
CPU running / Power..........One green LED, flashing = OK
RollCall Functions
Audio Controls
Audio extraction select........SDI input 1/2/Follow Video Control
Set line up level ..................+20 to –20 dBu in 1 dB steps
Set headroom.....................4 to 24 dB in 1 dB steps
Set audio detector thresholds
High and low levels, time delay
External input audio delay...Up to 1.5 s additional delay in 1 ms
steps
Input side control proc. - audio gain and polarity
Independent Gain, Mute, Polarity
control over de-embedded and
input channels. ±18 dB in 0.1 dB
steps.
Channel routing .................Output channels routed from AES
pairs 1 to 4, test tone and silence,
SDI 8 embedded channels from
any group
Output side control proc. - gain and polarity
Independent Gain, Mute, & Polarity
control over embedded and AES
output channels. ±18 dB in 0.1 dB
steps.
Global delay offset..............up to +1.5 s in 1 ms steps, common
to all processed audio.
Variable audio delay control source
Up to 0.5 s from RollTrack + GPI
Tone frequency, amplitude & Ident
2-channel tone generator. 100 Hz
to 15 kHz in 100 Hz steps.
Tone Setup:
Frequency ..........................100 Hz to 15 kHz in 100 Hz steps
Channel Ident .....................0.5 s interruption every 2 s
Video Controls
Select primary input............1/2
Black Level .........................±100 mV in 0.8 mV steps
Y/C Timing .........................±592 ns in 148 ns steps
Picture position ..................±592 ns in 148 ns steps
Luminance Gain .................±6 dB
Chrominance Gain..............±6 dB
Genlock H Phase................±32 µs in 74 ns steps
Genlock V Phase............... ±262/312 lines in 1 line steps
Video Horizontal Delay ...... +1 Line in 37 ns steps
Video Vertical Delay........... +1 Frame in 1 line steps
Video Delay Frames .......... 0 to +2 frames
Other Controls
Pass vertical data .............. On/Off (lines selectable 7/11 to
23/21 & 320/274 to 335/283)
Preset Unit......................... Returns all settings to default
Pattern Select .................... 100%/75% Bars, Multiburst, Black,
Animated Bars
User Memories .................. Name, clear, save and read 8 user
memories
Default Video Output.......... pattern / freeze/ run through
Default Audio Output.......... Silence
Caption Output .................. On/Off (default and pattern output
only)
Caption Generator ............. Programmable up to 19 characters
GPI/O set-up...................... May be attached to any memory
function/polarity
Reporting (* also Logged)
EDH (for selected input)..... *Presence, *Error-Time, *Error-
Seconds
No SDI .............................. *No input present
Input ancillary error ............ ANC error, ANC error-seconds
Input error.......................... Unused input not at current
operating standard
Report Embedded Audio Data
Report audio data pairs on input
and output SDI
Audio Silence, High Level, Low Level, Overflow
For processed audio channels only
RollTrack Input
Delay ................................. Audio delay – Fixed, RollTrack +
fixed
RollTrack Output
Delay ................................. Current video/audio delay
Input state.......................... Selected Input: Input Present, Input
Missing, Standard 525, Standard
625
Input 1: Input Present, Input
Missing, Standard 525, Standard
625
Input 2: Input Present, Input
Missing, Standard 525, Standard
625
Embedded Audio state....... Pair present
External AES Audio state... Pair present

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.8
INPUTS
Serial Digital Video Inputs
Serial digital inputs are made to the unit via BNC
connectors which terminate in 75 Ohms.
AES Inputs
Unbalanced AES inputs are made to the unit via
BNC connectors which terminate in 75 Ohms.
Balanced AES inputs are made to the unit via a 25
way D Type connector.
GPI I/O (-2 and -2A only)
This connector is used for accepting GPI
information (from mechanical switch contacts,
relay contacts etc.) The resulting action that the
unit takes may be programmed via RollCall.
It may also be configured as an output.
SERIAL IN
1
2
SERIAL IN 2
SERIAL IN 1
GPI
SERIAL
IN
AES IN
1
2
SERIAL OUT
IQBRK0
_18-2A
2
I
Q
B
R
K
0
_
1
5
-
1
A
AES IN + AES / ANALOG AUDIO OUT
AES IN + AES / ANALOG AUDIO OUT

IQBRK00/01 B12
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OUTPUTS
Serial Digital Video Outputs
These are the Serial Digital outputs of the unit via
BNC connectors for 75 Ohms.
AES Outputs
All balanced AES outputs are available via a 25
way D type connector.
All unbalanced AES outputs are available via BNC
connectors for 75 Ohms.
Analog Audio Out
All balanced analog outputs are available via a 25
way D type connector.
AES IN
1
SERIAL OUT
2 1
SERIAL
OUT
1
2
12
SERIAL OUT
I
Q
B
R
K
0
_
1
5
-
1
A
AES IN + AES / ANALOG AUDIO OUT
AES IN + AES / ANALOG AUDIO OUT
AES OUT
1
2
AES IN + AES / ANALOG AUDIO OUT
ANALOG AUDIO OUTPUTS

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.10
25 Way D Type Connection Details
25 Way D Connector
Pin Number
For AES Inputs and
Outputs For Analog Outputs Standard Pin Assignment
1 CHASSIS
14 AES IN 1 Ground GND1
2 AES IN 1 + 1+
15 AES IN 1 - 1-
3 AES IN 2 + 2+
16 AES IN 2 - 2-
4 AES IN 2 Ground GND2
17 Analog channel 1 OUT Ground GND3
5 Analog channel 1 OUT + 3+
18 Analog channel 1 OUT - 3-
6 Analog channel 2 OUT + 4+
19 Analog channel 2 OUT - 4-
7 Analog channel 2 OUT Ground GND4
20 Analog channel 3 OUT Ground GND5
8 Analog channel 3 OUT + 5+
21 Analog channel 3 OUT - 5-
9 Analog channel 4 OUT + 6+
22 Analog channel 4 OUT - 6-
10 Analog channel 4 OUT Ground GND6
23 AES OUT 2 Ground GND7
11 AES OUT 2 + 7+
24 AES OUT 2 - 7-
12 AES OUT 1 + 8+
25 AES OUT 1 - 8-
13 AES OUT 1 Ground GND8

IQBRK00/01 B12
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Example of Connection Details to XLR Connectors
25 Way
D-Connector
XLR
Connectors
MALE
CONNECTOR
(OUTPUTS)
FEMALE
CONNECTOR
(INPUTS)
Generic Connections (actual function will depend on the type of product)
AES in 2
Analog channel 2 out
Analog channel 4 out
AES out 1
AES in 1
Analog channel 1 out
Analog channel 3 out
AES Out 2

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CARD EDGE INDICATORS
SDI 1 Present
CPU Run
SDI 1 Error
SDI 2 Present
SDI 2 Error
Not Used
Not Used
Not Used
AES 2 Present
AES 1 Present
Note that only the LED's associated with the
particular version of the product will be active.
CPU Run (Green)
This LED will flash to indicate that the CPU is
running.
SDI 1 Present (Green)
When illuminated this indicates that there is a valid
signal at SDI 1 input.
SDI 1 Error (Yellow)
When illuminated this indicates that SDI 1 input is
not at the current operating standard.
SDI 2 Present (Green)
When illuminated this indicates that there is a valid
signal at SDI 2 input.
SDI 2 Error (Yellow)
When illuminated this indicates that SDI 2 input is
not at the current operating standard.
AES 1 and 2 Present (Green)
When illuminated these LED's will indicate that the
associated AES input pair is present.
SDI 1 Present
CPU Run
SDI 1 Error
SDI 2 Present
SDI 2 Error
Not Used
Not Used
Not Used
AES 2 Present
AES 1 Present

IQBRK00/01 B12
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RollCall PC Control Panel Screens
Video
Input Select
This allows either Input 1 or Input 2 to be selected
for processing.
Input Standard
This allows input standard to be selected.
If only 625 is selected the unit will be forced to only
accept 625 line inputs.
If only 525 is selected the unit will be forced to only
accept 525 line inputs.
If 625 and 525 are selected the unit will accept
both 625 and 525 line inputs.
Note that normally the unit will lock to the selected
SDI input; if this is lost or is not present, the unit
will automatically lock to the AES signal on AES
Input 1, if available.
DeEmbed Select
Either Input 1 SDI or Input 2 SDI may be selected
for DeEmbedding. If Follow Video is checked the
signal selected via the Input Select item will be
DeEmbedded.
Non-PCM groups can be transparently passed but
if a non-PCM group is selected for mixing or
routing it will be automatically muted.
If a Dolby header is detected in the data stream it
will be processed as a non-PCM signal.
Freeze
When checked the output picture will become a
frozen frame.

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ProcAmp
These items allow signal levels and timings to be
adjusted.
Separate adjustments may be made for the two
input channels Input 1 SDI and Input 2 SDI.
Note that for this and other screens the following
applies to the scroll bars:
The and symbols at the ends of the scroll
bar allow the value to be adjusted in discrete
steps.
The numerical value will be shown above the scroll
bars and selecting Preset will return the
setting to the calibrated value for that item.
Input 1 SDI and Input 2 SDI Controls
These items allow the gain, black level and timing
of both signals to be adjusted.
ProcAmp Enable
When checked the ProcAmp will become enabled
for that channel and the settings will be applied to
the signal.
When unchecked the settings will revert to the
preset values.
Luma Gain
This allows the Y (luminance) gain to be adjusted
by ±6 dB in steps of 0.1 dB. Preset value is 0.0 dB.
Black Level
This allows the black level to be adjusted by
+100mV in 0.8mV steps. Preset value is 0.
C Gain
This allows the Cb/Cr (color difference) gain to be
adjusted by ±6 dB in steps of 0.1 dB. Preset value
is 0.0 dB.
Picture Position
This item allows the timing of the picture position
relative to the normal value, to be adjusted.
The timing may be adjusted by +592ns in 148ns
steps.
Y/C Timing
This item allows the timing of the chrominance
signal relative to the luminance signal to be
adjusted, (i.e. Y to Cb/Cr timing) in nanoseconds.
The timing may be adjusted by +592ns in 148ns
steps.

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De-embed Pair 1-4 and 5-8
This allows control of Gain, Mute, and Polarity over
the de-embedded channel pairs.
L and R
These scrollbars allow the gain of the Left and
Right channels to be adjusted over a range of
±18 dB in 0.1dB steps. Preset is to 0 dB.
Invert
When checked the signal polarity will be inverted.
Mute
When checked the signal will be muted.
Stereo
When checked the left and right channels will be
configured as a stereo pair and any adjustments
made to one channel will automatically be applied
to both channels.
AES Input
This allows control of Gain, Mute, and Polarity over
the AES channels.
L and R
These scrollbars allow the gain of the Left and
Right channels to be adjusted over a range of
±18 dB in 0.1dB steps. Preset is to 0 dB.
Invert
When checked the signal polarity will be inverted.
Mute
When checked the signal will be muted.
Stereo
When checked the left and right channels will be
configured as a stereo pair and any adjustments
made to one channel will automatically be applied
to both channels.

IQBRK00/01 B12
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Audio Input Delay
This allows the AES inputs to be delayed.
AES Input 1 Delay and AES Input 2 Delay
These scrollbars allow the delay to be adjusted be
from 0 to 1500 ms in steps of 1 ms. Preset is to
0 ms.
Note that this delay will not be included in the
RollTrack audio delay or in the Total Delay
measurement displayed on the Audio Delay
Setup screen.
Audio Mix 1, 2, 3 and 4
There are four separate audio mixers Mix 1, 2, 3
and 4.
Each mixer has four inputs with individual gain
controls that allow the mixing levels for each of the
input signals, to be adjusted. The range of
adjustment is from 0 to –90 dB and to Off.
0 to -60 dB is in steps of 1 dB, -60 dB to -90 dB is
in steps of 3 dB.
The inputs can be selected from the list in the
Source 1, 2, 3 and 4 items.
The outputs of these mixers provide four extra
input selections for the Channel Router.

IQBRK00/01 B12
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Audio Bus A and B/Audio Bus C and D
This function allows the inputs for the four audio
buses of the router to be selected.
For each bus any source may be selected from the
list for the left and right channels.
L and R
These scrollbars allow the gain to be adjusted over
a range of ±18 dB in 0.1dB steps. Preset is to
0 dB.
Invert
When checked the signal polarity will be inverted.
Mute
When checked the signal will be muted.
Stereo
When checked the left and right channels will be
configured as a stereo pair and any adjustments
made to one channel will automatically be applied
to both channels.
Audio Embed
This function sets up the embedder sources and
destinations. Higher number embedders have
priority, so if the same destination pair is selected
on two embedders, the highest embedder will be
the one that is active.
Embedder 1, 2, 3, and 4
The source of the signal for the embedder may be
selected from the list.
Destination 1, 2, 3, and 4
The destination for the embedded signal may be
selected from the list.
Disable 1, 2, 3 and 4
When checked the embedding will be turned off.
For details of the Audio Embedding Packet
Distribution please refer to Appendix 2 on page 79.

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AES Out
This allows the signal source for the AES output to
be selected from the list of items for the two AES
sources. Silence and audio test tones may also be
selected.
AES 1, 2 Direct
Note that these signals will be unprocessed and
should be used if non-PCM is to be embedded.
Analog Out
This allows the signal source for the analog output
to be selected from the list of items for the two
analog sources. Silence and audio test tones may
also be selected.

IQBRK00/01 B12
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Audio Delay Setup
This screen allows the amount of delay to be set
and type of audio delay mechanism to be selected.
Manual Delay
This will affect all processed audio signals equally.
The delay may be set to up to +1.5 s in 1ms steps.
Delay Select
This allows the type of audio delay mechanism to
be selected. One or more of the types may be
checked. The amount of delay applied will be the
sum of the delay from the enabled delay
mechanisms.
Note that up to 0.5 s of delay may be applied from
the sum of the Internal + GPI + RollTrack delay
inputs.
Internal
When checked, an audio delay equal to the video
delay in the unit will be applied.
Manual
When checked an audio delay set by the Manual
Delay control will be applied.
GPI
When checked an audio delay will be applied that
is equal to the width of the pulse arriving at the
GPI connector.
Note that an audio delay pulse of more than
500 ms, applied to the GPI Input will be treated as
invalid. This will result in the GPI delay returning to
zero.
Note that the GPI must be configured correctly for
this function to operate. Please see page 25 for
details.
RollTrack 14, 15, 16 and 17
Then selected source(s) of the RollTrack input
signal(s) will apply an audio delay.
Total Delay
This will show the audio total delay (due to all
selected delay mechanisms) through the unit in ms.
Note that this delay figure does not include the
individual pair delay times for AES input 1 and
AES input 2 as their values may differ.

IQBRK00/01 B12
IQBRK00OPS 05/04/07 www.snellwilcox.com Version 1 Issue 6 B12.20
Audio Setup
Audio Monitoring
The four audio buses are monitored and level
detectors provide status information and logging
data.
Silence
The level at which the signal is considered to have
dropped to silence may be set with this control.
The range is from -80 dB to 0 dB in steps of 1 dB.
Preset is to -70 dB.
Low Level
The level at which the signal is considered to have
dropped to a Low Level may be set with this
control.
The range is from -80 dB to 0 dB in steps of 1 dB.
Preset is to -60 dB.
High Level
The level at which the signal is considered to have
risen to a High Level may be set with this control.
The range is from -80 dB to 0 dB in steps of 1 dB.
Preset is to -10 dB.
Overload
The level at which the signal is considered to have
risen to an Overload condition may be set with this
control.
The range is from -80 dB to 0 dB in steps of 1 dB.
Preset is to 0 dB.
Warning Timer
All the above monitoring facilities will only operate
after a time interval set by this control. A valid
signal is reported immediately.
The range is from 1 to 20 seconds. Preset is to 10
seconds.
Audio Tone
The frequency of the Audio Test Tone may be set
using this control. Left and right channels may be
set independently.
Frequency L and R
The range is from 100 Hz to 15 kHz in steps of
100 Hz. Preset is to 400 Hz.