search for: p_j_r_m

...o cancellation in most computers, because most sound cards have different capture and play frequencies. It vital for all acoustic echo cancellers. Any advice is welcome. ---------------------------------------------------------------------- >Date: Sun, 25 Jul 2010 20:26:44 +0000 (GMT) >From: p_j_r_m <p_j_r_m at yahoo.com> >Subject: Re: [Speex-dev] Sound card problem in acoustic echo >To: speex-dev at xiph.org > >Direct Sound AEC never worked for me, even when it did with Speex.?I was told that after disabling effects in DS the play and record streams could be synchronized,and...

...nt >> capture and play frequencies. It vital for all acoustic echo cancellers. >> >> Any advice is welcome. >> >> ---------------------------------------------------------------------- >> >> >Date: Sun, 25 Jul 2010 20:26:44 +0000 (GMT) >> >From: p_j_r_m <p_j_r_m at yahoo.com <mailto:p_j_r_m at yahoo.com>> >> >Subject: Re: [Speex-dev] Sound card problem in acoustic echo >> >To: speex-dev at xiph.org <mailto:speex-dev at xiph.org> >> > >> >Direct Sound AEC never worked for me, even when it did wi...

Hi: I'm using speex to perform echo cancellation in Windows. I'm aware of the problem about out of sync clocks in record and play sample rates in usual sound cards . In order to have an idea of how good is my echo cancelation working I would like to know if there is any #define thing i can pass to speex_echo_ctl to get the actual level of echo cancellation. If not, how can i extract that

>I remember?I had to expose the echo cancelation level implementing a get_echo_level( ) function based on this: >http://lists.xiph.org/pipermail/speex-dev/2008-September/006889.html This is really a good idea to determine the frequency difference between capture and play of the sound card. But it need constant far-end voice and a long time because it must repeat the process of

Hi ? I used this "sample counting " method to?resample and put my audio signals in synch. It worked perfectly?in XP machines using a SoundMax?audio card, but it failed in other XPs using Realtek cards. As seen on http://lists.xiph.org/pipermail/speex-dev/2008-September/006889.html?my application?continously checked my AEC level to slighly modify resample frequency, but convergence was