[vorbis-dev] True surround sound for Ogg -- a proposal

[David Carter]

On Fri, Jul 27, 2001 at 10:30:43PM -0500, David Carter wrote:
> On Fri, Jul 27, 2001 at 10:15:32PM -0500, David Carter wrote:
> > On Fri, Jul 27, 2001 at 07:53:23PM -0700, Michael Paine wrote:
> > > Has this sblive/ambisonic idea gone anywhere?  I would love if it did..
> [snip]
> > It would be a good idea to determine how many of these things already exist,
> > and how many would need to be found/created/modified.  As for the sound HW,
> > users will probably just have to bite the bullet and buy one of the existing
> > cards.  The software side is a lot more open.
[snipped Ambisonic software tools discovery]

I installed the latest ALSA driver tonight (v0.9beta6), and I was able to play
different stereo files out of the front and rear outputs simultaneously, so
there is every reason to believe it would work for 4-channel output as well.
Once libao is modified (assuming everything else works with more than two
channels), it should be possible to play back four channel files.  It would
probably also be a good idea to add a feature to ogg123 that would allow
the mapping of n channels of audio to x output channels in an arbitrary
fashion so you could listen to all the channels of a file (if not necessarily
at the same time).  I'm guessing this will be done post-1.0 when the rest of
the surround support is added, but sooner would be nice. :)


-- 
David Carter ** dcarter at sigfs.org ** dcarter at visi.com
PGP Key 581CBE61: E07EE199C767C752 8A8B1A9F015BF2EA
Key available by finger or www.keyserver.net

--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'vorbis-dev-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.