similar to: Speex echo cancellation and denoise issues

Hi I am trying to use the Denoise option of speex but unable to do so successfully. I would really appreciate if some one could help me and identify what exactly wrong i am doing... I am using below code to perform denoise. //Initialize speex preprocess state and set the denoise option int nEnable = 1; SpxPreprocessState = speex_preprocess_state_init(160, 8000);

I'm having trouble with the preprocessor's noise reduction feature. The basic issue is that it simply doesn't work very well. With my laptop (whose microphone is otherwise quite capable) I routinely hear transient background noise, typing, and other "quiet" sounds leaking through to the speex stream. Even worse, the AGC feature is blowing these things up into just awful

Andy Ross a ?crit : > I'm having trouble with the preprocessor's noise reduction feature. > The basic issue is that it simply doesn't work very well. > > With my laptop (whose microphone is otherwise quite capable) I > routinely hear transient background noise, typing, and other "quiet" > sounds leaking through to the speex stream. Even worse, the AGC >

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 all, as in subject, speex_preprocess inject noise in my data. Someone can help ? Here's the way that i'm using: #define NN 160 /* 20msec di audio */ #define AUDIO_SAMPLERATE 8000 spx_int16_t TEMP_Buffer[NN]; speex_pp_state = speex_preprocess_state_init(NN,AUDIO_SAMPLERATE); c = denoise; speex_preprocess_ctl(speex_pp_state, SPEEX_PREPROCESS_SET_DENOISE,&c); c = agc;

Hello, in my project im using speex 1.2rc1 and the preprocessor VAD seems to only separate complete silence from not complete silence frames. The Speex Manual, you can read "The voice activity detector (VAD) provided by the preprocessor is more advanced than the one directly provided in the codec." but if you go to the source code in preprocess.c line 995 "/* FIXME: This VAD

I have a video conference like application that I've been working on for a while now, and a recent change is causing some odd problems, and I was wondering if anyone else had seen problems like this. The issue I'm seeing is that when using the sound card for capture, the audio will eventually get about 1-2 seconds out of synch (delayed), from the video. However, if I use USB devices

Unlivable. I fix it. I forgot the speex_preprocess(m_pPreprocess, buf, NULL) need to do enough samples too. Tks a lot! And speex_preprocess_ctl(preprocess, SPEEX_PREPROCESS_SET_DEREVERB, &tmp); f=.4; speex_preprocess_ctl(preprocess, SPEEX_PREPROCESS_SET_DEREVERB_DECAY, &f); f=.3; speex_preprocess_ctl(preprocess,

hi there, I am new to mailing list so excuse me if I don't obey to the 'netiquette'. i am writing voice chat and speex is in the root of it. i write it in Java and use JNI to link with 'C'-based Speex 1.2beta. [I know of JSpeex but there are not implemented some features] recently i decided to use DTX feature of speex as well. the code follows. The problem is that no matter

Hi all, i use speex preprocessor features in this way: =================================== #define NN 160 /* 20msec di audio */ ... int tbc=0,c,d,ret; spx_int16_t TEMP_Buffer[NN]; char DLECODE; /* Inizializza il preprocessore Speex se non inizializzato */ if(Modem->speex_pp_state == NULL) { Modem->speex_pp_state = speex_preprocess_state_init(NN,AUDIO_SAMPLERATE); }

Jesus, Unfortunately, FFT and magic algorithms don't work (yet?). You might want to try this if you're not satisfied with Speex VAD: http://lists.xiph.org/pipermail/speex-dev/2008-August/006860.html It won't perform any miracles, but I think it works pretty well and is easy to tweak. Tom >---- Original Message ---- >From: jmorion at toomeeting.com >To: speex-dev at

I have been tyring to use the preprocessor standalone by feeding it pcm data from a headerless pcm file (mono, 22050hz) and then write the result to another file. Unfortunately, all I get back is noise (first frame is set to 0, rest is noise). Frame size is set to 440. I just modified testdenoise.c slightly to read/write from a file (see below) but I can't get useful results. What am I

I just download the 1.1.5. And it is working well. I try the xxx_int functions at least it works. But I did not find the performance improvement. But when I try this: m_pPreprocess= speex_preprocess_state_init(m_nSamplesPerFrame, m_nSampleRate); speex_preprocess_ctl(m_pPreprocess, SPEEX_PREPROCESS_SET_DENOISE, &tmp); and add speex_preprocess(m_pPreprocess, buf,

Hello, I'm using Speex1.1.11.1 source code. I enabled dereverb by speex_preprocess_ctl(). I try different dereverb_level and dereverb_decay values and it seems to not work. I generate some test files in CoolEdit using reverb or echo and then preprocess it by speex_preprocess(preprocess, input, NULL); and output is the same as input:(. Denoising and VAD works very good. I tried dereverb with

Hello, all. I am delightfully slogging my way through installing and configuring Asterisk 1.6.1.1 on CentOS 5.3. I'm learning lots and admiring the product but I'm having a problem getting speex to install and I would very much like to use it. It is not available in menuselect and the problem appears to be with speex_preprocess_ctl: [root at pbx01 asterisk-1.6.1.1]# grep -i speex

Hi. There is denoise for preprocess during encoding. The nature of my source is unpredictable and sometimes the result is better off if I dont have denoise ON when I save my encoded speex file. So, I would like to implment a real time denoise during decoding/playback time, (instead of having the denoise result saved into speex-encoded file). Is there such denoise-preprocess function that runs

Hello, all. 1) ACE does not work for me I am in a voip project using Speex, failed to have hte Speex ACE work. here is how I initialize it: /** * Configurations : * #define BITS_PER_SAMPLE (16) * #define SAMPLE_RATE (8000) * #define CHANNEL_NB (1) * #define DURATION (20) * SPEEX_MODEID_NB */ _eco_state = speex_echo_state_init(_encframe_size, 10*_encframe_size); speex_echo_ctl(_eco_state,

On 06/04/2010 07:37 PM, Jean-Marc Valin wrote: > On 10-06-04 05:16 AM, Gurinder Singh wrote: > >> I have been developing an audio application using Speex. To reduce the >> background noise in the captured audio I have enabled the denoise >> feature and set the noise suppression level to 60. >> > There you go, don't do that. There's a reason

Hi all, <p>im new on the list and want to introduce my self. Im a software developer working on engine control software for a german car manufacturer. I want to use speex for a privat videoconferencing project and faces some problems with it. First of all the projects in Visual-C++ doesn't work. I don't mean the path an dependecy problems. That is easy. But there are some errors.

Hello, when I call my conference, I see this error in my logs: ERROR: Function DENOISE not registered here is snippet from extensions.conf ... same => n,Set(CONFBRIDGE(user,announce_join_leave)=yes) same => n,Set(CONFBRIDGE(bridge,record_conference)=yes) same => n,Set(CONFBRIDGE(bridge,record_file)=/home/asterisk/file.wav) same => n,ConfBridge(1000) same =>