[Speex-dev] Problems with Speex echo canceller in 1.1.10
Eric.Scott at keynote.com
Thu Jul 28 07:15:01 PDT 2005
BTW, the problem #1 is not unique to the speex echo canceller. It has also occurred on other ec's I've tried, most recently the CANEC ec from dspalgorithms.com.
- Eric Scott
> -----Original Message-----
> From: Eric Scott
> Sent: Thursday, July 28, 2005 9:11 AM
> To: 'Jean-Marc Valin'
> Cc: speex-dev at xiph.org
> Subject: RE: [Speex-dev] Problems with Speex echo canceller in 1.1.10
> That was my first thought as well. However, I double checked
> everything and it wasn't reversed. I also reversed it to see
> what would happen. In that case, the NES came out unchanged.
> (This NES was the original FES.)
> Any other ideas? Also, do you know what algorithm is used?
> - Eric Scott
> > -----Original Message-----
> > From: Jean-Marc Valin [mailto:Jean-Marc.Valin at USherbrooke.ca]
> > Sent: Wednesday, July 27, 2005 8:43 PM
> > To: Eric Scott
> > Cc: speex-dev at xiph.org
> > Subject: Re: [Speex-dev] Problems with Speex echo canceller
> in 1.1.10
> > Le mercredi 27 juillet 2005 à 12:57 -0700, Eric Scott a écrit :
> > > I'm having trouble getting the echo canceller to work and
> > I'm hoping some one can get me started in diagnosing what's
> > going on. The symptoms I'm seeing are these:
> > >
> > > 1. If the NES is silence (i.e., no echo, no speech), the ec
> > puts the FES back into the audio.
> > > 2. If the NES is similar to the FES (same speech words),
> > the ec doesn't seem to remove the echo.
> > With just this, I can tell that you simply inverted the near
> > and far end
> > signals.
> > Jean-Marc
> > --
> > Jean-Marc Valin <Jean-Marc.Valin at USherbrooke.ca>
> > Université de Sherbrooke
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