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Re: low bit-rate speech coding


A few years ago, I built a prototype ultra low bit-rate speech coder that
averaged ~300 bps in experimental settings.  The paper shouldn't be hard
to find on the web.

"Ultra low bit rate speech coding using an ergodic hidden Markov model,"
ICASSP 2005.

Matt Lee

> Dear list,
> I'm looking for low (ultra) low bit-rate speech codecs.
> Can anyone provide me some free algorithms for such codecs? or an usefull
> link?
> Best Regards.