[speex-dev] --dtx alone does nothing?

Jean-Marc Valin jean-marc.valin at hermes.usherb.ca
Wed Jan 15 10:58:49 PST 2003


> One last thing. ;)  Is there much meaning to complexity values >3?  From
> a quick scan of the code, it looks like there are >1 and >2 comparisons,
> but not much more than that.  I want to run my test over all meaningful
> values of complexity and it takes a long time to do a run...

For voice, the difference between complexity 4 and 10 is very small
(<0.1 dB in SNR). However, there are cases (e.g. DTMF and other tones)
where there's still a quality gain past complexity 4.

        Jean-Marc


-- 
Jean-Marc Valin, M.Sc.A.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada

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