Displaying 5 results from an estimated 5 matches for "consec_noise".
2005 Dec 12
1
Getting SING errors
Hello!
I'm getting SING errors from the log() function. Here is
the code inside the vbr_analysis() function.
if (ener<60000)
{
if (vbr->consec_noise>2)
qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3));
if (ener<10000&&vbr->consec_noise>2)
qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3));
if (qual<0)
qual=0;
qual += .3*log(ener/60000.0);
}
Inspecting the values shows tha...
2006 Feb 14
1
Bug in vbr_analysis
...its, speex_data, frame_size);
I never run into problems using either speex on linux or windows until one
used my dll and speex through delphi on windows: he gets division by zero.
I found that "ener" is 0 around line 253: (version 1.1.11)
if (ener<60000)
{
if (vbr->consec_noise>2)
qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3));
if (ener<10000&&vbr->consec_noise>2)
qual-=0.5*(log(3.0 + vbr->consec_noise)-log(3));
if (qual<0)
qual=0;
qual += .3*log(ener/60000.0);
}
I think this is a side...
2006 Feb 14
0
Bug in vbr_analysis
...======================================
===
On Mon, 2005-12-12 at 18:06 -0800, Alex Bakaev wrote:
> Hello!
>
> I'm getting SING errors from the log() function. Here
is the code
> inside the vbr_analysis() function.
>
> if (ener<60000)
> {
> if (vbr->consec_noise>2)
> qual-=0.5*(log(3.0 +
vbr->consec_noise)-log(3));
> if (ener<10000&&vbr->consec_noise>2)
> qual-=0.5*(log(3.0 +
vbr->consec_noise)-log(3));
> if (qual<0)
> qual=0;
> qual += .3*log(ener/60000.0);...
2005 Feb 21
2
speex denoiser adaptation time
...neering judgement) ? I haven't
been able to decipher the Ephraim/Malah paper yet but i am finding in
other literature an adaptation time of 320 ms (16 runs) or so might be
reasonable for fast/short term adaptation-
I noticed that you also turn off adaptation when vad finds something
for up to consec_noise (==3, so 60 ms for me). Was curious
how that number was picked (i.e. perceptual, engineering judgment, etc)?
I understand you wouldn't want to adapt the denoiser when someone is
talking, the question is whether a small amount of residual echo
could mess it up (i.e. maybe 3 is too small?)
Tha...
2005 Feb 21
0
speex denoiser adaptation time
...#39;t
> been able to decipher the Ephraim/Malah paper yet but i am finding in
> other literature an adaptation time of 320 ms (16 runs) or so might be
> reasonable for fast/short term adaptation-
>
> I noticed that you also turn off adaptation when vad finds something
> for up to consec_noise (==3, so 60 ms for me). Was curious
> how that number was picked (i.e. perceptual, engineering judgment, etc)?
> I understand you wouldn't want to adapt the denoiser when someone is
> talking, the question is whether a small amount of residual echo
> could mess it up (i.e. maybe 3...