similar to: Problems with Speex echo canceller in 1.1.10

Jean-Marc, 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@xiph.org > Subject: RE: [Speex-dev] Problems

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. 3. For case #2, I pushed

Eecho cancellation is used to eliminate the echo which mixed with near end speech, while it was occured by far end speech. It always work like this: Find the similar speech in near end speech and eliminate it. In case 1: Because the there is no echo in near end speech, and the EC module still works on it. So a inverse model is been calculated, and a inverse signal is produced. In this way ,

Why not use gcc? You can get either mingw or cygwin. Otherwise I don't know. Speex should compile with a C++ compiler with only minor tweaks (forcing the compiler to accept the C casts). Jean-Marc Le lundi 18 juillet 2005 ? 17:55 +0000, Wolfgang Frotten a ?crit : > I am a delphi coder and i have successfully compiled version 1.0.5 to use the > resulting dll in John Villars

Hi everyone, I've just released Speex 1.1.9. The main change in this release is the echo canceller work sponsored by Tipic Inc (http://www.tipic.com/). It is now possible to do acoustic echo cancellation and obtain good attenuation after a short adaptation time. This has been tested at 8 kHz, but it should also work at 16 khz and above, so give it a try. There were also some fixes to the

Hi, I tried keeping it for a very long time and put logs there and it always went to not adapting. This is how I initialize speex_echo_cancel SpeexEchoState* _echoState = speex_echo_state_init(160, 320*10); I have 20 msecs of audio with 16bits for a sample. If two frames are identical and are given to speex_echo_cancel for many iterations, should I expect silence. Thanks -Anurag Quoting

Le mercredi 19 juillet 2006 ? 20:05 +0800, Janus.Wang@QMITW.COM a ?crit : > Hi Jean-Marc, > Please read the attachment file for Marvell 8618 datasheet for your reference, Too much is like not enough. Care to summarize? (speed, arch level, ...) > BTW, Could you mind to specify the voice computing power for Speex codec? > 1. Sample Rate 8K / Bit Rate - 2.15K ~ 24.6Kbps ( NarrowBand)

hi all, i want to use the echo canceller feature of Speex 1.1.10. For that i hav added speex_echo.h in my code.and have called the function. till compilation everything is fine but on linking it is giving me uresolved symbol error ... speexenc.obj : error LNK2001: unresolved external symbol _speex_echo_state_init Debug/speexenc.exe : fatal error LNK1120: 1 unresolved externals Error executing

If you have a couple minutes, it probably wouldn't be hard to see where the bug is (I just don't have time this week). It would have to do with the granulepos computation in speexenc. Jean-Marc Le jeudi 07 juillet 2005 ? 08:41 +0300, David Resnick a ?crit : > Thank you very much for your immediate attention! > > I've exported my wav files to raw files before encoding and

The builds that I referred to in my last mail should be 11398 and 11387, not 11387 and 11343. Sorry for any confusion. - Jim ----- Original Message ----- From: "Jim Crichton" <jim.crichton@comcast.net> To: "Jean-Marc Valin" <Jean-Marc.Valin@USherbrooke.ca> Cc: <speex-dev@xiph.org> Sent: Wednesday, May 10, 2006 11:47 AM Subject: Re: [Speex-dev] Speex echo

Look at the manual. There's just too many possibilities to screw up I don't feel like listing them every time. With 8 kHz audio, 20 ms frames and 50-300 ms tail, I can definitely say that it works (as long as you get things right). Jean-Marc Le mercredi 21 d?cembre 2005 ? 13:51 +0800, wu xudong a ?crit : > I have tested the AEC by file model,but found it > doesn't work!The

Hi So in your case if you don't want to use speex_echo_cancellation than you should do next way: Save the playback frames (clean echo) within separate playback thread with speex_echo_playback func. Then use speex_echo_capture - it will remove the clean echo frame (saved with speex_echo_playback func) from const spx_int16_t *rec buffer (saved with speex_echo_capture) and you will get

Hi Yes, it's absolutely unnecessary to use speex codec. You can encode the echo cancelled auido data with any codec you want. The Echo Canncelation API is here - http://www.speex.org/docs/api/speex-api-reference/group__SpeexEchoState. html I would advice you to look at speex_echo_cancellation function but you will have to sync playback and capture streams by yourself. I've used

It's working fine now... Thanks for your help --- Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca> wrote: > OK, that was a stupid error in the le_int prototype. > It's fixed in svn > now. > > Jean-Marc > > Le mercredi 28 septembre 2005 ? 11:53 +1000, > Jean-Marc Valin a ?crit : > > OK, it seems like I screwed up the wav header code > between

Jean-Marc, Well I finally tracked down the problem. Then I checked my mail and found that you had fixed it several hours earlier. :( Build 11387 produces the same result as my modified build 11343. Because of compiler limitations in the TI tools, I did have to make modifications to pseudofloat.h (separating return of float values) and nb_celp.c (adding braces around a variable declaration

> 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

Hi, I tried the same options suggested in your post and the problem continues. What do you suggest? 2005/9/15, Jean-Marc Valin <Jean-Marc.Valin@usherbrooke.ca>: > Hi Eduardo, > > All I can say is that the timings you have are a bit odd. What > optimizations options are you using (I suggest -O3)? Also, perhaps you > can try --enable-arm4-asm just in case. I've had the

That's expected if you don't have libogg installed. libogg is not necessary if you don't need the command-line encoder and decoder. In that case, you can just compile libspeex. Jean-Marc Le mardi 19 juillet 2005 ? 15:04 +0200, Mukund Kumar a ?crit : > In place of rpm I used pre compiled binary for installing > the Cross Compiler and now I am not getting this error.

Hi Eduardo, All I can say is that the timings you have are a bit odd. What optimizations options are you using (I suggest -O3)? Also, perhaps you can try --enable-arm4-asm just in case. I've had the encoder running in real-time on a chip that's at least twice slower than yours with the settings you're using. Jean-Marc Le jeudi 15 septembre 2005 ? 16:23 -0400, Eduardo Bezerra a

> Build 11387 produces the same result as my modified build 11343. Because of > compiler limitations in the TI tools, I did have to make modifications to > pseudofloat.h (separating return of float values) and nb_celp.c (adding > braces around a variable declaration in the middle of code). I have > attached a patch. You might prefer to do the nb_celp.c change in a >