search for: speex_preprocess_run

...y issues. I am not sure whether it is just my compiler (gcc 3.3.5) doing the wrong thing with the cast. File: preprocess.c Arch affected: x86, (others?) svn revision: 12778 Description: The SpeexPreprocessState_ member 'nb_adapt' is a signed integer. nb_adapt is only modified during 'speex_preprocess_run' when an unbounded increment is performed. When calculating 'beta' within 'speex_preprocess_run', I received a floating point exception even when compiled with -DFIXED_POINT. The reason is as follows: <original beta calculation within speex_preprocess_run> ... st->...

i'm trying to find the speex_preprocess_run fuction and checked in the speex/speex_preprocess.h but the prototype isn't there. I'm using 1.2beta1 checked the trunk and it seems to say that is the right header. wondering if anyone else has/had this issue and if its resolved or my lib just got corrupted somehow. thanks Greg...

...ant to know when should I call this function, before the encoding process (i.e. preprocess the pcm data) or after the encoding process (i.e. the speex data)3. and if my questions is still not well understood, here is the encoding snippet and decoding snippet I have, which line should I insert "speex_preprocess_run", assume init and destroy are handled properly?encode part. . .speex_bits_reset(&bits);speex_encode_int(encoder, (spx_int16_t* )bytes, &bits);count = speex_bits_write(&bits, bytes, len);. . .decode part. . .speex_bits_read_from(&bits2, bytes, enc_count);speex_decode_int(decoder...

Thanks for your reply. I changed my code to: if (speex_preprocess_run(preprocess_state, shortPointer) == 1) { speex_encode_int(enc_state, shortPointer, &enc_bits); } In the mobile version of the software, compiled against the mobile build of Speech, I get 1 and 0 based on whether the speech is detected. In the version of the software compiled against the Win32...

...but I don't know how to check if the actual frame has voice in it or not. So, in my code, I do: int tmp = 1; speex_preprocess_ctl(preprocess_state, SPEEX_PREPROCESS_SET_VAD, &tmp); speex_preprocess_ctl(preprocess_state, SPEEX_PREPROCESS_SET_DENOISE, &tmp); then later, for each frame speex_preprocess_run(preprocess_state, shortPointer); but how do I know if the frame contained voice? I tried if (preprocess_state->was_voice == 1) { ...Do voice present code... } But the compiler complains that was_voice is not defined, which, I assume, comes from the fact that preprocess_state is declared in...

...peex_preprocess_state_init(frame_size, sample_rate); speex_preprocess_ctl(preprocess_state_left , SPEEX_PREPROCESS_SET_ECHO_STATE, ec_state ); speex_preprocess_ctl(preprocess_state_right , SPEEX_PREPROCESS_SET_ECHO_STATE, ec_state ); AEC: speex_echo_cancellation(ec_state, mic, echo_ref, output); speex_preprocess_run(preprocess_state_left, output); speex_preprocess_run(preprocess_state_right, output); Is there anything wrong with my code? Thanks in advance. Nicholas

...ons: http://codeforfun.wordpress.com/2010/04/29/compile-speex-for-iphone/ Next, I was able to record some audio and play it back. I then inserted a call to the speex preprocessor and am passing all of the audio buffers I receive from Audio Queue Services (the iPhone/Mac audio streaming API) into speex_preprocess_run. The problem though is that speex_preprocess_run is returning a 1 regardless of whether I am speaking into the microphone or not. There is this output in the log when debugging my program: *warning: The VAD has been replaced by a hack pending a complete rewrite* Does this mean that VAD does no...

...voice through Waveform Functions of Windows Multimedia API 2. Started Speex Preprocessing liberary 3. Turned on preprocessor by calling speex_preprocess_state_init and passing it 20 ms frame size and sampling rate 4. Set VAD on 5. Copied byte data into __int16 variables and passed it to speex_preprocess_run function. in return of these steps i got wrong date back to me. could you please send me the sample code or could you identify the problem? i'll be thankful regards --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. -...

...is function) speexclient.c:164: error: (Each undeclared identifier is reported only once speexclient.c:164: error: for each function it appears in.) speexclient.c:216: error: too few arguments to function 'speex_echo_capture' speexclient.c:223: warning: implicit declaration of function 'speex_preprocess_run' Can anyone give me direction ? Thanks Nichole -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20070501/acc7cefe/attachment.html

...e and playback, both are different functions called in different times directly from 'portaudio'. On capture I do: speex_echo_cancellation(es,input,buffer,output); Input is the audio just captured Buffer is the last frame audio playbacked Output is obvious On playback I do: speex_preprocess_run(ps,(spx_int16_t*)output); memcopy(buffer,output,settings.bufferSize()); output is the frame audio to sound (different that the 'output' in capture) buffer store the last frame audio to be used later on capture (look on capture) Echo and preprocess states are conveniently initiated us...

...t to assume that there are massive floating point calculations happening? I did a quick profile with CodeAnalyst and identified the most expensive functions as (in order): CPU Clocks, Function 4657, kiss_fft_stride 4456, speex_echo_cancellation 2494, split_cb_search_shape_sign 1490, fir_mem16 1419, speex_preprocess_run I'm looking for advise on how to boost the performance with as little code rewrite as possible. The architecture for release build will be SSE/SSE2 capable. 1) Compiler optimizations: Recommended options? 2) SIMD. Is Speex written to take advantage of SIMD architectures? What must I do to take...

Hi, when I use preprocessor with AEC, VC++ alerts me about heap corruption. I have protected speex_echo_playback, speex_echo_capture and speex_preprocess_run with mutexes, to avoid echo_state being used at the same time, but it still happens. Any help about this ussue? Thank you.

...ate); > > speex_preprocess_ctl(preprocess_state_left , > SPEEX_PREPROCESS_SET_ECHO_STATE, ec_state ); > speex_preprocess_ctl(preprocess_state_right , > SPEEX_PREPROCESS_SET_ECHO_STATE, ec_state ); > > AEC: > > speex_echo_cancellation(ec_state, mic, echo_ref, output); > speex_preprocess_run(preprocess_state_left, output); > speex_preprocess_run(preprocess_state_right, output); > > Is there anything wrong with my code? > > Thanks in advance. > Nicholas > > > ------------------------------ > > _______________________________________________ > Speex-de...

...the denoise option int nEnable = 1; SpxPreprocessState = speex_preprocess_state_init(160, 8000); //20ms audio at 8000 bps speex_preprocess_ctl(SpxPreprocessState, SPEEX_PREPROCESS_SET_DENOISE, &nEnable); //Run the preprocess on the buffer captured before encoding speex_preprocess_run(SpxPreprocessState, (short*)pbBuffer); speex_encode_int(EncoderState,(short*)pbBuffer, &stSpeexBits); I dump the output of the buffer after calling speex_preprocess_run and play it using some media player tool but I dont hear any audio as if the complete audio has be...

...ons: http://codeforfun.wordpress.com/2010/04/29/compile-speex-for-iphone/ Next, I was able to record some audio and play it back. I then inserted a call to the speex preprocessor and am passing all of the audio buffers I receive from Audio Queue Services (the iPhone/Mac audio streaming API) into speex_preprocess_run. The problem though is that speex_preprocess_run is returning a 1 regardless of whether I am speaking into the microphone or not. There is this output in the log when debugging my program: *warning: The VAD has been replaced by a hack pending a complete rewrite* * * Does this mean that VAD doe...

...econd for echo suppression after the echo canceler. This seems to have effect, but we have not tested the total quality of this configuration yet. In the code however preprocessor.c compute_gain_floor() both noise and echo variables, suggesting these belong together in the same instance. So is speex_preprocess_run always supposed to be run *after* speex_echo_cancellation, does it perhaps depend on which filter function is enabled? Thanks Bart

Hello, I'm using Speex Preprocessor to supress noise, eliminate echo etc. But I have another preprocessor state that I want to use ONLY to determine voice activity. int res = speex_preprocess_run(m_VADOnly, (spx_int16_t *) pStreamSampleBuffer); pStreamSampleBuffer is modified after call to speex_preprocess_run. I have manually turned off noise suppression and AGC but anyway - VAD modifies my data. Is there a solution? All I want is to know whether voice present or not.. I do not need any...

Hi All, I am trying to use VAD opption of speex encode on STM32F4 chip. But when I use *speex_preprocess_run *function, It allways return 1. Anyone can show me the problem? And please, give me an example about using VAD. Thanks in advance, Regards, Nhan. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20140612/ca19ba2...

...the denoise option int nEnable = 1; SpxPreprocessState = speex_preprocess_state_init(160, 8000); //20ms audio at 8000 bps speex_preprocess_ctl(SpxPreprocessState, SPEEX_PREPROCESS_SET_DENOISE, &nEnable); //Run the preprocess on the buffer captured before encoding speex_preprocess_run(SpxPreprocessState, (short*)pbBuffer); speex_encode_int(EncoderState,(short*)pbBuffer, &stSpeexBits); On calling speex_preprocess_run removes all the audio from the buffer and a constant humming sound is heard. I open the recorded file in Coo...

...I used to encode and decode, it works properly in Android 3.0: static int speexo_encode(const void *in_bytes, void *out_bytes, int size) { if (!codec_open) return 0; int return_value; speex_bits_reset(&ebits); //speex_echo_capture(echo_state, (short*)in_bytes, (short*)in_bytes); //speex_preprocess_run(prep_state, (short*)in_bytes); speex_encode_int(enc_state, (short*)in_bytes, &ebits); if(speex_bits_nbytes(&ebits) >= (int)size) { return_value = 0; } else { return_value = (int)speex_bits_write(&ebits, (char*)out_bytes, size); } return return_value; } static int speex...