It's possible to have nothing in a track - in that case, the flag (the 4th item in the list sigmund~ outputs) should be -1.
If that flag is saying there's a sinusoid of amplitude zero, something's wrong with sigmund~. cheers Miller On Fri, Apr 10, 2020 at 11:29:35PM +0200, Jo??o Pais wrote: > Hello list, > > I'm trying out [sigmund~], and wanted to confirm something related to > results I'm getting. When using the patch > doc/4.data.structures/14.partialtracer (and also a derivate patch of mine), > I get lots of tracks with 0 amplitude as result of the analysis. > The settings are [sigmund~ -t -npts 1024 -npeak 40 -maxfreq 8000 peaks > tracks] in the help file, and [sigmund~ -t -npts 2048 -npeak 200 tracks] in > my patch. > > When comparing the result of the analysis with a spectrogram of the sample, > the frequency content does match - the tracks with 0 amplitude don't exist > in the sample, i.e. they're silence. > > My doubt is, is it normal to have tracks with 0 amplitude? Or is there > something wrong with the analysis settings? > (if these tracks are a derivative of [sigmund~], that's fine, I can filter > and delete them afterwards) > > Best, > > jmmmp > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list