[speex-dev] Quality

[Jean-Marc Valin]

Le mer 26/02/2003 à 15:43, Rick Kane a écrit :
> I was also wondering if there is a standard set of input sequences people
> are using to test Speex.  I haven't stumbled upon it/them yet.

I've got a few samples at: http://www.speex.org/audio/samples/

        Jean-Marc

> > -----Original Message-----
> > From: owner-speex-dev at xiph.org [mailto:owner-speex-dev at xiph.org]On
> > Behalf Of Jean-Marc Valin
> > Sent: Tuesday, February 25, 2003 7:24 PM
> > To: speex
> > Subject: Re: [speex-dev] Quality
> >
> >
> > > I was wondering if the developers were using anything to
> > "objectively" test
> > > the quality of the speex vocoder.  For instance PSQM or one of the many
> > > derivatives.  Mean Opinion Scoring seems an expensive route.
> > >
> > > Is there some open source software to use for this?
> >
> > Well, I haven't found and open-source perceptual testing software, so
> > I've relied so far mostly on listening and SNR/segmental SNR.
> >
> > If anyone has access to this kind of software, I'm interested to
> > comparisons between different versions of Speex, mostly 0.4.0, 0.6.0,
> > 0.7.0 and rc2. Even for those who only have their own ears, I'm
> > interested on comments about possible regressions, mostly for the 8 kbps
> > mode (--quality 4 setting or --lbr for version 0.4.0).
> >
> > 	Jean-Marc
> >
> > --
> > Jean-Marc Valin, M.Sc.A.
> > LABORIUS (http://www.gel.usherb.ca/laborius)
> > Université de Sherbrooke, Québec, Canada
> >
> >
> 
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-- 
Jean-Marc Valin, M.Sc.A.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada

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