Harris HMX6803+ - AFD;WSS;VI Detection and Insertion

HMX6803+ and OP+HMX+ Installation and Operation Manual 37
Copyright © 2009, Harris Corporation
Chapter 3: Operation
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.
• Seven input parameters (Input > AFD/VI/WSS De-embedder) on
HMX6803+ modules indicate the presence of AFD, WSS, and VI data
when you determine the lines where this data is likely to appear, if present.
• The single processing parameter (Out Aspect Ratio, which appears at
Processing > Video > AFD/VI/WSS) determines the options for the AFD
Select and VI Select parameters.
• Twelve output parameters (Output > AFD/VI/WSS Embedder) determine
the line to embed AFD, WWS, and/or VI codes on, the code(s) to be
embedded, and what happens when a code disappears from the input.