[Speex-dev] Acoustic echo cancellation

Arun Raghavan arun.raghavan at collabora.co.uk
Mon Jun 27 08:40:37 PDT 2011

On Thu, 2011-06-23 at 19:13 +0200, Kadinger András wrote:
> 2011.06.21. 22:57 keltezéssel, Arun Raghavan írta:
> > On Tue, 2011-06-21 at 11:39 -0700, Arun Raghavan wrote:
> > [...]
> >> I'm also running this on x86 (x86_64, technically), and it's all
> >> floating-point, so I guess this is a regression somewhere. Will try to
> >> see if I can run it without any optimisations if possible, which I
> >> assume should serve as an adequate reference.
> > Surprisingly, if I use -O0 instead of -O2, I see a difference in the
> > output. Nothing very observable in Audacity, but the actual output
> > definitely differs.
> >
> > Still trying to figure out why they're both so different from your run
> > from 5 years ago, though.
> I no longer work on that project (or on audio for that matter) since 
> 2008, so the best I can offer is take a listen if you share your output 
> audio file - maybe something will pop at me.

That'd be great, thank you! I've put up the sample at:


The inputs are the J_mic.wav and J_spk.wav files from your website.


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