similar to: Problem related to Voice activity detection

This must be a simple issue, but I cannot figure it out. I want to use VAD, 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

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 version of Speex,

Hi, Tank you for your reply. I have tried the sample programs given the manual and done encoding and decoding a wave file. That is working fine. I have already read the manual and API reference. But this problem did not occured with the wave file encoding/decoding. While capturing the data from MIC and encoding/decoding is giving this problem. Thanks and Regards, Vijender Reddy, -----

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 doing smth wrong. Regards, Anton A. Shpakovsky -----Original Message----- From: speex-dev-bounces at

Hi, I'll try to keep this as brief, yet descriptive enough to save everyone some time. If I'm off with this one please forgive me, but it has fixed my 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'

Hi, Can anybody show me how to enable stereo AEC, I tried with the following code and the result is bad, degraded output. Init: ec_state = speex_echo_state_init_mc(frame_size, aec_tail, 2, 2); speex_echo_ctl(ec_state, SPEEX_ECHO_SET_SAMPLING_RATE, &sample_rate); preprocess_state_left = speex_preprocess_state_init(frame_size, sample_rate); preprocess_state_right =

Hello, I am attempting to use Speex in an iPhone application and running into an issue. I got speex to compile by following these instructions: 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

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

I am trying to compile speexclient.c. I downloaded all the files to ~/speex- 1.2beta1/include When I call ./compile.sh I get the following errors, speexclient.c: In function 'main': speexclient.c:164: error: 'SPEEX_PREPROCESS_SET_ECHO_STATE' undeclared (first use in this function) speexclient.c:164: error: (Each undeclared identifier is reported only once speexclient.c:164:

Hi, I got the following problem with speex. Could you help me to resolve the following issue. Description: I am taking speech input from MIC storing in a buffer after that i will encode by using speex then decoding and sending to output(speakers). it is small demo project of speech encoding/decoding in VC++. I am reading the data from buffer in the following way where data is short[] type and

Hi, I wrote to a program looking at the api reference to pre-process noisy speech using SpeexPreprocess api. Code listing is the following: --------------------------------------- #include <stdio.h> #include <speex/speex_preprocess.h> #define FRAME_SIZE 160 #define SAMPLING_RATE 8000 int main(int argc, char **argv) { SpeexPreprocessState *preprocess_state =

I believe there is a documentation error regarding speex_preprocess_ctl(preprocess_state, request, ptr); The manual states: SPEEX_PREPROCESS_SET_DENOISE Turns denoising on(1) or off(2) SPEEX_PREPROCESS_SET_AGC Turns automatic gain control (AGC) on(1) or off(2) I noticed that setting a value of 0 turns the setting off. Setting a value of 1 or 2 turns the setting on. While I do think 1 and 0 is more

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 --------------------------------- Be a better

Simple questions:1. when this method is called for each frame, do I have to call them twice for both the encode process and the decode process?2. does preprocessor do preprocessing on raw PCM data or on encoded speex data? I need to clarify this because i want 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.

Well, I'm not a professional in AEC theory, but what I've mentioned is: speex_echo_state_init(20, 320*10) - frame size should correspond to 20ms. At your sampling rate (16000hz) is should be 16K*0.02 = 320. The same I can notice about echo tail. 100ms: 16000*0.3 = 4800, not 3200 as you has. But that's not crucial I think. Just wanna you get the point. "Internally,

Nicer way: void* speexState = speex_encoder_init(&speex_wb_mode); int speexFrameSize, speexRate; speex_encoder_ctl(speexState, SPEEX_GET_FRAME_SIZE, &speexFrameSize); speex_encoder_ctl(speexState, SPEEX_GET_SAMPLING_RATE, &speexRate); SpeexPreprocessState* speexPreprocessState = speex_preprocess_state_init(speexFrameSize, speexRate); Jozsef -----Original Message----- From: Max

Hi The latest SVN trunk for speex has changed the SpeexPreprocessState to an opaque structure, for jolly good software engineering reasons. However, the Analogue AGC (AAGC) feature of iaxclient (in audio_enode.c) relies on some members of this. It uses speech_prob to detect when there is enough speech to consider AAGC and then loudness2 to decide how to adjust the input mixer. We want to use

Hello Jean-Marc et al: On 07/06/07, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > - Is there a reference somewhere (other than the source itself) that > > explains how the latest VAD algorithm works? > > Read the source, Luke :-) (sorry) Okay. I had to ask :-) > > > - Is it possible to obtain the VAD status of a Speex stream > >

The reasons I have posted these questions are: 1) To find out if Speex can take advantage of SIMD extensions. 2) To maybe learn from someone with previous experience in optimizing Speex for moderns x86 architectures before I set off trying all kinds of things on my own. See answers inline: 2009/6/15 Tom Grandgent <tom at grandgent.com> > Why haven't you tried using release build

I am using 'portaudio' and 'speex' to implement a speech audio capture/playback. Preprocess works fine but not the echo canceller (associated with preprocessor). I have read 'testecho.c' but it didn't help me. What I am doing bad? This is my implementation: One thread to capture and playback, both are different functions called in different times directly from