[ogg-dev] [Vorbis] MT9 Capabilities

Gregory Maxwell gmaxwell at gmail.com
Mon Aug 18 05:25:48 PDT 2008

On Mon, Aug 18, 2008 at 6:36 AM, Danny Piccirillo
<danny.piccirillo at ubuntu.com> wrote:
> Sorry, but i wasn't sure the best place to post this. I was looking for some
> forums but it doesn't look like Xiph has any official ones. Anyways, i heard
> about this MT9 think a while ago and i thought it would be awesome if FLAC,
> Vorbis, and all could implement something like this.
> http://www.guardian.co.uk/music/2008/may/27/news.seanmichaels
> http://en.wikipedia.org/wiki/MT9
> In combination with that, it would also be cool to have some sort of
> subtitles-esque thing for audio which would be useful for speeches and
> karaoke.
> These two things would be a very very big boost for free audio formats :)
> How feasible is this in the long run?

Vorbis supports 255 channels in a single stream, FLAC 8. Ogg would let
you encapsulate many streams in one file, even combining Vorbis, FLAC,
and Speex.  The open questions are application support and metadata
for signaling the right default settings.

More information about the ogg-dev mailing list