search for: cancellor

Anybody knows if it's possible to disable zap echo cancellor from dialplan only for certain outbound calls ?? I share the same phone lines for voice calls and faxes. Iaxmodem works fine for me only turning off the echo cancellor, but I need it for voice calls. Any ideas ? maxx

...y(remote, pseg->samples, 160 * sizeof(short)); Second, each time i get samples from the mic, i do the echo cancellation like this: if (nsamples == 160){ speex_echo_cancellation(echo_state, (short *)pseg->samples, remote, unechoed); q = unechoed; } I have also initialized the echo cancellor like this: echo_state = speex_echo_state_init(160, 8000); My issue is simply that the echo cancelleor is making almost no difference to my echo at all. any ideas? Q1. is there a way to determine if the echo cancellor managed to lock in or not? Q2. does anybody have a working code with wave ap...

...solved external symbol _speex_encode_int Debug/hfdialer.exe : fatal error LNK1120: 3 unresolved externals I guess that the 1.2beta windows project files and the binaries are broken somehow. the 1.1.12 works wells though. does anybody have the fixed versions? I need to use these to try out the echo cancellor. Alternatively, should I try fixing them? - farhan

jean - there is a new header for echo cancellation in 1.1.7. can you give me any pointers about playing with it? i didn't see any sample code that uses it. should the speex manual be updated to reflect this and the preprocessor API? is there anything i can do to help with the documentation? this week, i shall submit the tested binaries for ARM with 1.1.7. - farhan

Hi, Merry Christmas to all. :) I have been trying out new 1.2beta3 here and facing some noise problems, (I can't say this is 1.2beta3 problem because I haven't tried out previous version yet) and was wondering if anyone also has faced and solved similar difficulties. When the speex encoding/decoding (wideband) process starts, the voice is crispy clear with almost no noise in the

On Dec 3, 2007 1:24 PM, Stefan Reuther <streu@gmx.de> wrote: > John Miles wrote: > > What's wrong with a plain old .bat file, or even an NMAKE .mak file? > > Ship two files, debug.bat and release.bat, and call it good. > > > > It is best to leave project-file creation up to individual users, > > in my opinion. > > I second that. When I played around

...API (wave audio) for audio capture and playback makes it impossible to do echo cancellation with Speex AEC or other EC method due to inprecise timing? I welcome comments from anyone who has got echo cancellation working when recording through WinMM, DirectSound or ASIO. 2. What about the Speex echo cancellor and the different sampling rates. Will it only perform well in narrowband mode (8kHz)? Does it not perform well in wideband (16kHz) or ultra-wideband (32kHz) mode? I read somewhere that you need a longer tail length for higher sample rates. Measured in samples it will of course be longer, but it co...

...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 ? 09:18 -0700, gue baja a ?crit : > 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...

Has anyone had any luck getting a ReplayTV DVR box to connect through an Asterisk box? Mine seems to dial just fine, but can't negotiate a connection. I am using: exten => _95380024,1,Dial(Zap/1/${EXTEN:1},120,d) exten => _95380024,2,Congestion I don't have any problems doing a fax though my system. For this setup, I am running a simple Digium developer's kit on a

...at xiph.org [mailto:speex-dev-bounces at xiph.org] *On > Behalf Of *Greger Burman > *Sent:* Monday, August 10, 2009 5:40 AM > *To:* speex-dev at xiph.org > *Subject:* [Speex-dev] AEC troubleshooting > > I'm experiencing little to no damping of acoustic echo from the echo > cancellor and I can't figure out why so far. I thought I should try the > echo_diagnostic tool so I built libspeex.dll and libspeexdsp.dll with the > DUMP_ECHO_CANCEL_DATA flag, but I'm not getting any output files at runtime. > Any ideas? > Build information: > Speex version: 1.2rc1 &...

An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20090811/ad615b2a/attachment.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: comunip.gif Type: image/gif Size: 1663 bytes Desc: not available Url : http://lists.xiph.org/pipermail/speex-dev/attachments/20090811/ad615b2a/attachment.gif

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

...eft. 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 ? 09:18 -0700, gue baja a ?crit : > > Is there any place where I can see a summary of what > > is being done and what is still pending with the fixed...

...Tim _____ From: speex-dev-bounces at xiph.org [mailto:speex-dev-bounces at xiph.org] On Behalf Of Greger Burman Sent: Monday, August 10, 2009 5:40 AM To: speex-dev at xiph.org Subject: [Speex-dev] AEC troubleshooting I'm experiencing little to no damping of acoustic echo from the echo cancellor and I can't figure out why so far. I thought I should try the echo_diagnostic tool so I built libspeex.dll and libspeexdsp.dll with the DUMP_ECHO_CANCEL_DATA flag, but I'm not getting any output files at runtime. Any ideas? Build information: Speex version: 1.2rc1 Target Win32 x86 MS VC++2...

...t your problem. I was recording and playing full duplex on the same audio card but still had clock drift between the signals of about 3 ms per second when using windows multimedia interface. You can compile speex with the preprocessor flag DUMP_ECHO_CANCEL_DATA to get audio dump files from the echo cancellor. There is a matlab/octave script you can use on the dumps, but you can also import the dumps into an audio editor (e.g. Audacity) to analyse. I have noticed that the delay between echo signal and the microphone signal also has an effect on how well Speex AEC performs. I did some tests with the test...

I have 2 Asterisk servers that communicate with IAX2 between them and support multiple SIP clients each. Only one of them has Zap channels to the PSTN. I've been having problems because the Zap channels do not hang up when a sip client of the external server makes a call to the PSTN. SIP --- Asterisk ---- IAX2 ---- Asterisk --- Zap The local * server is using

Hi: I want to have conference call with asterisknow and need 2 ports E1.Which Digium card is better?TE212 or TE220.I haven't problem with motherboard. Regards. --------------------------------- Get the Yahoo! toolbar and be alerted to new email wherever you're surfing. -------------- next part -------------- An HTML attachment was scrubbed... URL:

A couple of things to be noted on the symbian port. 1. the spokn.mmp file is missing window.c, please add that. 2. smallft.c is not required. it has global data that prevents compilation on symbian. 3. lbr_48k_tabels.c has a global variable called dummy_epic_48k_variable on line 37. this has to be commneted out too. 4. check that all tables are declared const. i will shortly post the symbian

...Tim _____ From: speex-dev-bounces at xiph.org [mailto:speex-dev-bounces at xiph.org] On Behalf Of Greger Burman Sent: Monday, August 10, 2009 5:40 AM To: speex-dev at xiph.org Subject: [Speex-dev] AEC troubleshooting I'm experiencing little to no damping of acoustic echo from the echo cancellor and I can't figure out why so far. I thought I should try the echo_diagnostic tool so I built libspeex.dll and libspeexdsp.dll with the DUMP_ECHO_CANCEL_DATA flag, but I'm not getting any output files at runtime. Any ideas? Build information: Speex version: 1.2rc1 Target Win32 x86 MS VC++2...

Hello? I am a new user of speex.I am currently working on speex frames and I have some questions. I am using narrowband and long tail length, and it works very well with speex test DEMO. But it is very difficult to have speaker input in perfect sync with mic input. Speex does not work at all. Any suggestion? Regards? -------------- next part -------------- An HTML attachment was scrubbed...