SFS6803
+
and OP
+
SFS
+
Installation and Operation Manual
41
Disable the associated audio embedder (Audio Grp 1-4 Pair 1-2 Embed Control). For
example, if Dolby-E is passing through group 1, pair 1, set the
Audio Group 1 Pair 1
Embed Control
parameter to
Disable
.
Set the
ADS Clean
parameter to
No
.
Audio Delay
Ranges
Depending on the amount of delay applied to the video stream, the available range for the
audio delay parameters varies. The ranges are listed in
External Audio Processing Delay
Set the
External Audio Delay
parameter to the amount of processing delay incurred by
external audio before it enters the SFS6803
+
. While external audio delay is not tracked by
the audio synchronizer, an equivalent amount of video delay is applied to the video path to
realign the output video with the externally applied audio.
The
Actual Video Delay Used
parameter monitors the amount of additional video delay
applied. This parameter is a sum of this compensating video delay plus any video delay
applied using the
Video Delay
parameter, measured in frames.
Set the associated
SRC (1-16) Ext Audio Align
parameter to
On
. (To determine which SRC
is the source of the externally processed audio, check the parameter settings within the
Input > Audio > Routing
menu.) This ensures the externally processed audio is realigned
with output video once it is output from the module (embedded or AES output).
Maintaining Audio/Video Alignment
When you use Sample Rate Conversion with PCM Audio to change audio rates and provide
audio synchronization with output video, this introduces a delay in the audio signal path.
To maintain an alignment between video and audio in
PCM
mode, set the
Audio/Video
Align
parameter (Processing > Video > Delay) to
Yes
. This introduces a matching video
delay and maintains audio/video alignment.
When using
Non-PCM
audio, or when sample rate converters are bypassed, set the
Audio/
Video Align
parameter (Processing > Video > Delay) to
No
to avoid excessive video delay.
AFD/WSS/VI Detection and Insertion
AFD, WSS (625 only), and VI (526/625 only) embedded video metadata specify the active
area to be displayed from a video input. These codes do not do any aspect ratio conversion
themselves, but indicate how the video should appear to systems capable of interpreting
the data.
Table 3-7
Audio Delay Range Depending on the Amount of Video Delay
Condition
Parameters
Range
Video Delay greater than 31
frames
Input Audio Ch 1–16 Delay
Input Audio AES 1A–8B Delay
0
to 660.00 ms
Video Delay less than 32
frames
Input Audio Ch 1–16 Delay
Input Audio AES 1A–8B Delay
0
to 1320.00 ms
Summary of Contents for Selenio 6800 SFS6803+OP+SFS+
Page 4: ......
Page 8: ...Contents vi Hardware Communication Problems 99 Index 101...
Page 92: ...Chapter 3 Operation 78...
Page 108: ...Appendix A Audio Bit Manipulation 94...
Page 118: ...Index 104...
