[Speex-dev] Bitrate at ultra wideband

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Tue Jan 10 00:43:57 PST 2006

> Hello everyone.
> I would like to know which are the available bitrate using the
> ultra-wideband compression.

Ultra-wideband is basically wideband plus 1.8 kbps. Wideband ranges from
about 4 kbps to 42 kbps. The useful bit-rates are about 10-28 kbps (add
1.8 kbps for ultra-wideband). Note that ultra-wideband sometimes
produces high-frequency artifacts that make it worse than wideband. It
depends on the application. Test first.


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