Crystal Vision
Appendix 1
Audio controls
The audio controls tab contains the audio configuration controls. Audio routing, configuration
and tracking audio delay speed are assigned in this tab.
Audio controls menu
Audio bypass
Selecting bypass will send any embedded audio directly to the output, bypassing the router
and resamplers.
Routing matrix
At the heart of SYN-A 3G is the 16 input/16 output routing matrix. This will allow any of the
up to eight possible stereo pairs embedded in the input video to be routed to any of the four
groups on the output video.
Changes in the audio routing are implemented by clicking on the crosspoint tiles which will
highlight in a dark red colour. Once the required routing is set up it can be actioned by
clicking on the TAKE button. Until this time no changes to the routing matrix will have any
effect on the audio routing.
Mute
Each of the stereo input pairs can be individually muted by selecting mute.
Note:
When routing Dolby E, to ensure integrity of the audio any Dolby E stream
must be treated as a stereo pair and no audio processing such as mute, mono
and gain is applied.
Output Group Enable
The four output embedders can be individually enabled or disabled. This allows for any other
data already present on the input video to be retained for downstream use.
Resamplers
The Resample Enable control affects how the audio data is manipulated to change the PCM
delays. On resampled channels (resample enabled) the audio will be continuously resampled
allowing seamless changes in audio delay. On non-resampled channels (resample not enabled)
samples will be passed unchanged through the signal path: if the delay has to change, single
SYN 3G/SYN-A 3G User Manual R1.3
50
9 July 2019
