On Sun, 2005-07-31 at 21:24 +1000, Peter Chubb wrote: > Hi, > I have a laptop with IEC958 digital output. It uses an i810 > with AC97 codec. > > How can I get full 5.1 channel output through the digital output? > Stereo works well, by specifying ALSA device iec958 >
To the best of my knowledge (and I'd enjoy being corrected), you can't. The only way to get 5.1 channel output from the SPDIF/IEC958 output is to use a compressed codec, ie AC3 or DTS, which have actively-defended-patented encoders. Basically that means it's only good for streaming the content straight off a DVD to a decoder box, or decoding speakers. I believe the best you can manage in raw PCM is a 4 channel output at 48khz. J. -- Jan Schmidt <[EMAIL PROTECTED]> -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
