Originally Posted by
Mr_P
yes - i would expect those results:
8 layers of 1920x1080 at 25fps AIC aprox 70Mb/s PLOnceFW without (no) audio
When playing video ONLY - everything gets rendered on the graphics card as catalyst prioritises video - so it should be smooth.
When playing AUDIO - that layer doesn't get rendered on the graphics card - because catalyst has to prioritises the audio - which is much more processor intensive.
To make it easier for the processors to cope with audio - it is best to render the audio+video as a small 16x16 movie file (AIC / ProRes) and make it all black
then you can sync the video only playback (on one layer) to the audio+video file playback (on another layer) using SyncID playmode on the video only layer
note: - you don't even have to assign the audio layer to an output/mix in this scenario
S