On Sat, 2005-12-17 at 15:40 +1100, Mark Spieth wrote: > Im just working on multi channel audio. (finally) > what is the max number of channels a stream can have? > AC3 is 6 (5.1) > DTS? 8? > is 3 possible with existing soundcards/streams? (L+C+R) probably as > eventually there should be a config item to indicate max channels > which may be < the channels the card is capable of. > what Ive currently done is to let Reconfigure try stream max channels > first and then progressively degrade as the sound card/driver > capabilities arent met.
MPEG-1 can handle one or two audio channels, MPEG-2 can handle 5.1 channels with the simple profile, and 48 audio channels with the advanced profile. I would think it might be best to try to detect the limits of the sound card, then find matching audio. Or, remix a multi-channel track to the number of audio channels on the sound card we have, assuming 5.1 or 7.1 configuration when presented with 6 or 8 channel audio, resp.. DTS supports just 5.1 channels, and the 0.1 channel is low freq only. -- Daniel
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