[Speex-dev] Re: Fixed-point VAD?

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Tue Dec 27 18:24:55 PST 2005


> I found this message concerning VAD and was wondering whether VAD has
> been ported to fixed-point in the latest version? 

Sorry, VAD is still float, but if you're using the built-in one, float
emulation should work (it's not very compute-intensive).

	Jean-Marc
 
> Thanks,
> SingHui
> 
> ---------- Forwarded message ----------
> From: Jean-Marc Valin <Jean-Marc.Valin at usherbrooke.ca>
> Date: Jul 22, 2005 1:02 AM
> Subject: Re: [Speex-dev] Fixed-point
> To: gue baja < gue_baja at yahoo.com>
> Cc: speex-dev at xiph.org
> 
> Hi Baja,
> 
> Here's a quick summary:
> In narrowband, the encoder and decoder are all ported to fixed-point
> for 
> CBR between 4 kbps and 18.2 kbps. Only the 2 kbps (vocoder) and 24.6
> kbps modes still have a few floats left. Most of wideband is also
> ported, but there are some float operations left. The packet loss
> concealment is also done, but not the VAD/VBR. The jitter buffer
> isn't 
> converted, but there's not many float ops there in the first place.
> The
> preprocessor and echo cancellor aren't converted and there's lots of
> float stuff there.
> 
>         Jean-Marc
> 
> Le mercredi 20 juillet 2005 à 09:18 -0700, gue baja a écrit : 
> > Is there any place where I can see a summary of what
> > is being done and what is still pending with the fixed
> > point version of the libraries?
> >
> > I have some experience with vocoders and fairly good 
> > experience with de-jitters and suchs. I may be able to
> > help.
> >
> > Thanks
> >
> > Baja
> > _______________________________________________
> > Speex-dev mailing list
> > Speex-dev at xiph.org
> > http://lists.xiph.org/mailman/listinfo/speex-dev
> >
> --
> Jean-Marc Valin <Jean-Marc.Valin at USherbrooke.ca>
> Université de Sherbrooke
> 
> _______________________________________________
> Speex-dev mailing list
> Speex-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/speex-dev


More information about the Speex-dev mailing list