[Clam-devel] MFCC Loops
pauls631 at gmail.com
Mon Sep 7 12:32:20 PDT 2009
well, let me change the question then. is there a "code" sample for
doing spectral analysis with overlapping windows (ie using windowsize
and hopsize parameters)?
On Mon, Sep 7, 2009 at 8:24 PM, Pau Arumí<pau.arumi at barcelonamedia.org> wrote:
> Hi Paul,
> I didn't understand exactly where the problem is.
> (However I think the most qualified to answer you is David Garcia who is
> currently on holidays. He'll be back in a week or two.)
> El dl 07 de 09 de 2009 a les 16:54 +0200, en/na paul simmons va
>> I am trying to do MFCC extraction. As far as I get; the steps are
>> Read an "Audio"
>> Run "SpectralAnalysis" on output of "Audio"
>> Run "MelFilterBank" on output of "SpectralAnalysis"
>> Run "CepstralTransform" on output of "MelFilterBank"
>> If so; I cannot understand where to do looping, for example if I do:
>> spectralAnalysis.Do(audio, spectrum);
>> melFilterBank.Do(spectrum, melSpectrum);
>> cepstralTransform.Do(melSpectrum, melCepstrum);
>> CLAM::XMLStorage::Dump(spectrum, "Spectrum",s);
>> CLAM::XMLStorage::Dump(melSpectrum, "MelSpectrum",m);
>> CLAM::XMLStorage::Dump(melCepstrum, "MelCepstrum",n);
>> it applies mfcc to each read audio patch (mentioned by Audio.SetSize)
>> and got one MFCC feature vector. But I cannot understand how
>> WindowSize or HopSize is applied in this fashion. Because since Audio
>> is read in non-overlapping windows with mReader.Do(), overlapped
>> windows are run only for current audio part
>> I think there must be another , more correct way to get overlapping
>> windows continuesly in whole audio, but cannot find it. Any ideas?
>> Clam-devel mailing list
>> Clam-devel at llistes.projectes.lafarga.org
> Clam-devel mailing list
> Clam-devel at llistes.projectes.lafarga.org
More information about the clam-devel