Jason Gauthier wrote: > I can't find many cards except for the Creative Labs X-Fi that seems to > fit both.. and from what I read SPDIF passthrough doesn't work. I'm > not 100% sure what that means. (Pretty new to this level of audio) >SPDIF was designed to transport two channels of 16-bit uncompressed >audio at 48 kHz (this is 192,000 bytes per second). If you want to >transport more channels (4.0/5.1/7.1), the data has to be compressed >with a codec like Dolby Digital (AC-3) or DTS, and a special control bit >must be set in the SPDIF stream to indicated that the data is >compressed. (Since nobody wants to pay for an encoder license, this is >mostly interesting for DVDs, which the audio data already in compressed >form.) Fantastic explanation! I'm not 100% sure where that leaves me with my surround sound project with Linux (and Myth) but it does leave me thinking quite a bit. Thanks, Jason ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
