[Vorbis] Sample rates higher than 48k? 24-bit depth?

Michael Smith mlrsmith at gmail.com
Thu Jan 6 22:33:24 PST 2005


On Thu, 06 Jan 2005 22:15:21 -0800, Paul Ellis
<public at ellisfoundation.com> wrote:
> I just got some new recording gear (M-Audio Firewire 410, and some new
> mics) and my audio interface can do up to 96khz/24-bit recording.  This
> led me to check if Vorbis could encode at that rate, which it does not
> seem to be able to right now.  Am I wrong on this?  If not are higher
> sample rates and bit depths in the roadmap?
> 
> Paul
> 

Vorbis should be fine with 96kHz input (though it won't really take
much advantage of the higher frequencies that this allows, I think).
Vorbis doesn't really support any particular bitdepths - internally,
the codec is all floating point. So encoder applications have to
convert from whatever integer bit depth they receive into the
appropriate floating point number.

Perhaps whatever encoder you're using doesn't do that? (I can't
remember what version of oggenc added 24 bit support - the current
(1.1) version certainly does).

Mike


More information about the Vorbis mailing list