similar to: Echo Cancellation ...

Thank you for you quick reply, Jean-Marc. I have just used a human voice to replace the sine wave, but the result is like a broken voice after tens of seconds. Do you have some sample voice in .sw that I can test with? I want to have one set or a few sets of sample voice that work for my understanding and debugging. This is the output from echo_diagnostic.m in my human voice test: Far end to

Hello all, I am trying out the echo cancellation of Speex (1.2beta2) on Windows XP. I use the Windows Media API (i.e. waveInOpen, waveOutOpen etc) for playback and capture, but I cannot make echo cancellation works in my use case. Here is a description of what I tried: (the sound is in 8kHz and 16 bits per sample, the frame size is 240, tail_length is long enough to cover the far end to near end

Hi All I am using speex in one of my WinCE project. I have been trying to use speex to perform denoise on the captured audio packet and echo cancellation. Following behavior I have observed while using various options. I would really appreciate if you could help me with the issues I am facing. 1. Denoise: I have written the following to code to perform denoise. //To initialize speex

Hi I have tested echo cancellation using some different examples. TEST 1. First, I record my voice, named TestVoice1. Then I perform testecho using TestVoice1 as the data of both mic and speaker. Final, I get a ideal result after modified the parameters for several times. It means the output is almost silent. I think this shows the echo cancellation can work. TEST 2. Then I edit the TestVoice1

The encoded speex file should, by convention, be given the '.spx' extension rather than '.wav', but that is not the issue. What appears to be happening is that the '.wav' extension on your named output file from speexdec is not being recognised as '.wav' and, consequently, the file is being written as 'raw' data without the wave file header. I am not sure

Thanks for your prompt and helpful reply. In FLOAT_DIVU() it hangs at the following: while (a.m >= b.m) { e++; a.m >>= 1; } for the case where a and b are both zero (yes, division by zero). This happens from mdf.c: leak_estimate = FLOAT_EXTRACT16(FLOAT_SHL(FLOAT_DIVU(st->Pey, st->Pyy),14)); where st->Pey and st->Pyy are both zero, which happens for the

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

Is there a bugzilla or similar for speex? I'm getting core-dumps on AMD64 speex (ubuntu) > speexenc -v speexenc (Speex encoder) version 1.1.11.1 (compiled Dec 9 2005) Copyright (C) 2002-2005 Jean-Marc Valin > speexenc /tmp/d04t05.wav d04t05.spx Encoding 16000 Hz audio using wideband (sub-band CELP) mode (mono) Segmentation fault > aplay /tmp/d04t05.wav Playing WAVE

Hi, Jean-Marc Valin wrote: > Actually, there are probably some batch programs that could do the > job. It's definitely not a job for speexenc, which I'd like to keep > simple. Fair enough. Which batch programs should I be looking for? I had a look around, and could not find any... The reason speexenc seems like a good place to do this, is that it already have the routines to

But using the ACM codec I just need to put the speex content into the wave file data chunk and then windows will play it? Miguel Gomes -----Mensagem original----- De: owner-speex-dev@xiph.org em nome de Matthias Granberry Enviada: qui 04-03-2004 11:53 Para: speex-dev@xiph.org Cc: Assunto: Re: [speex-dev] Speex, what container?

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello For some reasons, I need to encode in mono a stereo wave file, as with the --downmix option from oggenc. I searched in speexenc man page and in the on line documentation, unsuccessfully. Of course I could first use something like sox to down mix my file, but it would be more practical to have an option directly in speexenc. - -- RIQUER

Hi, I wanted to play around with the echo canceller so I tried the testecho program. As speaker sound I fed it with a 440 Hz sine wave, and as mic with a 550 Hz + 440 Hz sine waves sound (but the 440 Hz component half the amplitude). I kind of expected to get a somewhat clean 550 Hz sine out, but it doesn't seem to work that way. Are there better samples I can use with testecho to see

The aplication that I am developing is like a sound recorder (goes directly to the soundboard and start capturing the sound and writing the file, using the directsound api). I'm already capable of writing to normal wav files but I wanted to encode the audio with speex to have smaller size (and still good quality). How can I write the wav files with speex content using the ACM codec? (like

Actually, there are probably some batch programs that could do the job. It's definitely not a job for speexenc, which I'd like to keep simple. Jean-Marc Le ven 09/01/2004 à 17:37, Asger Kunuk Alstrup a écrit : > Hi, > > Speex is great! > > We are using it to compress hundreds of megabytes of speech for use in our > application that trains people in

I am transcoding mp3 to wave using ffmpeg I am then piping it to speexenc for speex encoding but the speex file size is 496 bytes after the command ends https://lists.ubuntu.com/archives/ubuntu-users/2010-March/212927.html https://lists.ubuntu.com/archives/ubuntu-users/2010-March/212949.html https://lists.ubuntu.com/archives/ubuntu-users/2010-March/212954.html what am I doing wrong? bellow is

Hello, > 2. I don't have a good source of wav data for testing. I've noticed that > introducing bugs into speex (even gross ones like returning completely > incorrect codebook entries) tends to, sometimes subtly, degrade quality > instead of blowing up. Is there an existing set of source data - and > maybe even a test harness that will do binary comparison, so I can avoid

I suggest that you write the command line as Jean-Marc suggested: speexenc sample.wav - | speexdec - sample_out.wav I have tested this and it works as expected. You need to specify the '-' for stdin and also for stdout. John As an aside, I notice that the wave output from speexdec does not write the wave file header when the output is destined for stdout. I believe this is incorrect

Anton A. Shpakovsky <saa <at> tomsksoft.com> writes: > > As for me - speex_echo_cancellation is a better choise. Try using it in > capture thread instead > of those speex_echo_capture and speex_echo_playback functions. > > And please, describe your problem in details. Cause the fact that you > "didn get echo cancellation" > doesn't mean you are

Ashhar Farhan wrote: > > dear Anders, > > the speex encoder really does not know when you are ending a wave file. > most probably there is a one-off error in your loop that reads the wave > file and you are incorrectly reading the end of the wave file. Hmmm, I am using code ripped verbatim from speexenc. Are there any known bugs of this kind in that? > btw, it will be

Hi, Speex is great! We are using it to compress hundreds of megabytes of speech for use in our application that trains people in resuscitation. The previous version of our product used Ogg Vorbis, but after switching to Speex, we achieve fantastic compression, while retaining super quality. That allows us to cram more translated versions of the software onto each CD-ROM, making everything