search for: dump_echo_cancel_data

...that all the frames that I feed to the AEC have the fixed size of 320 bytes. So this is why I am presuming that the the dumped files should be of equal size. The output signal is good and not distorted. It has echo, though. In a try to diagnose that I have followed the documentation and set the DUMP_ECHO_CANCEL_DATA compiler variable. The canceller generated aec_out.sw, aec_play.sw and aec_rec.sw and they all appear to have uneven size. Octave complains about the files which is logical as it's trying to multiply matrixes that have different dimensions. I have checked that tear-downs are made correctly a...

...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++2008 EE > Configuration: Release, Full optimization, _USE_SSE > DUMP_ECHO_CANCEL_DATA > > -- > Greger Burman > > -----...

Hi everyone, I think this should be interesting to all of those with echo cancellation problems. I finally check in some code to make these problems easier to debug. You'll need to have svn version for this. First, you need to manually define DUMP_ECHO_CANCEL_DATA in the compilation (sorry configure switch for now). With that, the AEC will automatically save the near-end, far-end and output signals to files (aec_rec.sw aec_play.sw and aec_out.sw). These are exactly what the AEC receives and outputs. >From there, you'll need to start Octave and type:...

Hi Guys, I am trying to incorporate the speex AEC into my RTP stack. Trying to diagnose why the echo is not being cancelled I enabled DUMP_ECHO_CANCEL_DATA as per the docs. The problem is that the dump files the AEC generates are of different size. As I understand this and looking at echo_diagnostic.m, the files are supposed to be of same size. Can someone give me a hint as to why this could be happening? Additional info: Windows WaveIn/Out API i...

...that all the frames that I feed to the AEC have the fixed size of 320 bytes. So this is why I am presuming that the the dumped files should be of equal size. The output signal is good and not distorted. It has echo, though. In a try to diagnose that I have followed the documentation and set the DUMP_ECHO_CANCEL_DATA compiler variable. The canceller generated aec_out.sw, aec_play.sw and aec_rec.sw and they all appear to have uneven size. Octave complains about the files which is logical as it's trying to multiply matrixes that have different dimensions. I have checked that tear-downs are made correctly a...

Hi I'm debugging why echo cancellation does not work in my app using the DUMP_ECHO_CANCEL_DATA flag. What format does the data I receive have, looks like 16bit integers just dumped but when plotting it in MATLAB I do not get a raw audio data signal I expected. Kind Regards //Gunnar Gunnar Karlsson HotSwap Stockholm AB Landsv?gen 39| SE-172 63 Sundbyberg, Sweden Mobile +46 739...

...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++2008 EE Configuration: Release, Full optimization, _USE_SSE DUMP_ECHO_CANCEL_DATA -- Greger Burman -------------- next part -------------- An HTML attachmen...

...i everyone, >> >> I think this should be interesting to all of those with echo >> cancellation problems. I finally check in some code to make these >> problems easier to debug. You'll need to have svn version for this. >> >> First, you need to manually define DUMP_ECHO_CANCEL_DATA in the >> compilation (sorry configure switch for now). With that, the AEC will >> automatically save the near-end, far-end and output signals to files >> (aec_rec.sw aec_play.sw and aec_out.sw). These are exactly what the AEC >> receives and outputs. >> >> >F...

...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++2008 EE Configuration: Release, Full optimization, _USE_SSE DUMP_ECHO_CANCEL_DATA -- Greger Burman _____ ___________________________________________...

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...k this should be interesting to all of those with echo >> >> cancellation problems. I finally check in some code to make these >> >> problems easier to debug. You'll need to have svn version for this. >> >> >> >> First, you need to manually define DUMP_ECHO_CANCEL_DATA in the >> >> compilation (sorry configure switch for now). With that, the AEC will >> >> automatically save the near-end, far-end and output signals to files >> >> (aec_rec.sw aec_play.sw and aec_out.sw). These are exactly what the >> AEC >> >>...

...>> I think this should be interesting to all of those with echo > >> cancellation problems. I finally check in some code to make these > >> problems easier to debug. You'll need to have svn version for this. > >> > >> First, you need to manually define DUMP_ECHO_CANCEL_DATA in the > >> compilation (sorry configure switch for now). With that, the AEC will > >> automatically save the near-end, far-end and output signals to files > >> (aec_rec.sw aec_play.sw and aec_out.sw). These are exactly what the AEC > >> receives and outputs. &gt...

...epeat it anyway. You have to first make sure that this is not 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 Sp...

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...