[Clam-devel] Spectral Analysis/Synthesis problem
parumi at iua.upf.edu
Fri Nov 30 02:54:46 PST 2007
Probably Xavi will have more insight about these issues.
But the first thing that comes to my head is: it seems to me that you're
applying a rectangular window (type=None). Have you experimented with
other window types?
El dv 30 de 11 del 2007 a les 15:29 +0800, en/na globot va escriure:
> I am sorry to disturb you "again" but here is my problem :
> I use this kind of network :
> it work almost perfectly (with jackd buffer set to 64) but there is one
> small glitch.
> it seem that every "SpectralAnalysis.HopeSize" there is a peak appearing
> in the synthetized sound.
> here i put a example of what i got with those settings :
> - analysis.HopeSize = 128
> - analysis.ZeroPadding = 0
> - analysis.SamplingRate = 48000
> - analysis.FFTSize = 256
> - analysis.WindowSize = 257 (type = None)
> + synthesis.ZeroPadding = 0
> + synthesis.SamplingRate = 48000
> + synthesis.AnalWindowSize = 257 (type = None)
> + synthesis.HopSize = 64
> + synthesis.SynthWindowGenerator.size = 129
> PS : If i modfy the params to have FFTSize = 1024 so HopSize = 512, the
> peaks will appear evry 512 sample.
> Any idea what to do ? this is my last big problem... And i have 3 days
> to solve it :(
> is it possible there is a small problem in SpectralAnalysis/Synthesis
> class that would cause this while calculating first or last samples ? or
> can this be solve buy changing parameters ? (i didn't find any suitable
> Clam-devel mailing list
> Clam-devel at llistes.projectes.lafarga.org
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