Crystal Vision
Control Descriptions
Resample
The Resample 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 audio
samples will be dropped or repeated as required. This control has
no effect on channels containing Dolby E which is automatically
detected and bypasses the resamplers.
Dolby E
On when an audio input pair is Dolby E encoded.
Input
On when an audio input group is detected.
Audio Delay
Select audio delay options. (SYN-A 3G only)
Delay
This control is used to delay the audio between 0 to 120mS with
respect to the video and compensate for any small delay between the
incoming video and audio signals.
TAD Speed
This sets the time the audio delay takes to track
fast or abrupt changes in video delay. The faster
the rate of change, the quicker the audio delay
will match changes in video delay so minimising
lip sync errors, but at the expense of a matching
change of musical pitch. Refer to the section
‘Delays’ for more help with TAD speed settings
for different applications
.
Dolby E Delay
Delay Dolby E encoded signals by up to three
frames in one frame increments.
SYN 3G/SYN-A 3G User Manual R1.3
36
9 July 2019
