[speex-dev] Coding used in Ultra Wide Band

Jean-Marc Valin
Fri, 06 Aug 2004 15:02:01 -0000

> Can u kindly tell me what kind of coding does speex
> use in Ultra Wide Band ? And from where can I read the
> details of it ?

The coding is the same as the low bit-rate wideband and basically it
encodes the LPC coefficients for the high-band and then it uses aliasing
as the high-band excitation. I don't think it's really described
anywhere, sorry (you can always look at the code).

        Jean-Marc


--
Jean-Marc Valin
http://www.xiph.org/~jm/
LABORIUS
Université de Sherbrooke, Québec, Canada


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