Speex dev - Dec 2006 - Broken denoiser in SVN (?)

Hi,

I'm trying to use a denoiser on a wince with a FIXED_POINT defined.

Denoiser works OK - it removes the noise, but then it unacceptable hurts 
a voice.

Here is a code that I use:

#define TEST_DENOISE_SAMPLES 2000

void test_denoise()
{
    FILE *fin;
    FILE *fout;
    spx_int32_t rate=0;
    int chan=1;
    int fmt=16;
    int denoise_enabled = 1;
    SpeexPreprocessState *preprocess;
    fin = _tfopen(_T("Storage Card\\1.raw"), _T("rb"));
    if(!fin)
        return;
    fout = _tfopen(_T("Storage Card\\2.raw"), _T("wb"));
    if(!fout)
    {
        fclose(fin);
        return;
    }
    preprocess = speex_preprocess_state_init(TEST_DENOISE_SAMPLES, 11025);
    speex_preprocess_ctl(preprocess, SPEEX_PREPROCESS_SET_DENOISE, 
&denoise_enabled);
    for(;;)
    {
        short buf[TEST_DENOISE_SAMPLES];
        int readed;
        readed = fread(buf, 2, TEST_DENOISE_SAMPLES, fin);
        if(readed != TEST_DENOISE_SAMPLES)
            break;
        speex_preprocess(preprocess, buf, NULL);
        fwrite(buf, 2, TEST_DENOISE_SAMPLES, fout);
    }
    speex_preprocess_state_destroy(preprocess);
    fclose(fout);
    fclose(fin);
}

Best Regards,
Dmitry Yakimov

Dmitry Yakimov a ?crit :
> Hi,
> 
> I'm trying to use a denoiser on a wince with a FIXED_POINT defined.
> 
> Denoiser works OK - it removes the noise, but then it unacceptable hurts
> a voice.
> 
> Here is a code that I use:
> 
> #define TEST_DENOISE_SAMPLES 2000
Euh, how about you define a frame size that isn't 10x bigger than what's
recommended in the manual? Also, when reporting problems, please refer
to code in the speex distribution (testdenoise, testenc, speexenc, ...)
instead of your own code. At least if that fails I know that it might be
a bug in my code and not in yours (which is usually much more likely).

	Jean-Marc