[speex-dev] Quality

[Rick Kane]

Thanks

Of course, I have a billion vectors from G.72x, GSM, QCELP, EVRC,...

I wonder what the copyrights and licenses say about using them for a
different vocoder... Hmmmmm...

> -----Original Message-----
> From: owner-speex-dev at xiph.org [mailto:owner-speex-dev at xiph.org]On
> Behalf Of Jean-Marc Valin
> Sent: Wednesday, February 26, 2003 3:45 PM
> To: speex
> Subject: RE: [speex-dev] Quality
>
>
> 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
> > >
> > >
> >
> > --- >8 ----
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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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