wow, thanks, but you lost me :) anyway, I thought of an easy exit but more costy, by having the double as much oscilators as copies that keep frozen.
I will try it, Thanks again 2011/7/18 Mathieu Bouchard <[email protected]> > On Fri, 8 Jul 2011, Alexandre Torres Porres wrote: > > It seems now it's a matter of aligning the phases, but not sure how, good >> night >> > > Phase alignment has to be done by a slight temporary pitch shift. You can > shift up or shift down, but in any case, you need to shift. > > If you do a plain linear cross-fade of signals (or a plain linear > cross-fade of spectra, which is the same thing), it will automatically do > this temporary pitch-shift, but will also do a temporary amplitude-drop at > the same time. > > This is because if you have two dots on a circle representing two phase > alignments at the same amplitude, and you go from one to the other, you will > go inside of the circle, where the amplitude is lower. The centre of the > circle represents silence. In the extreme case of complete reversal of > phase, the crossfade will quickly go through the silence point. But each > frequency will have a different crossfade, so, overall, the amplitude drop > will rarely be great, except if you tend to have few partials. > > I'm thinking about phasor diagrams like http://en.wikipedia.org/wiki/** > Phasor <http://en.wikipedia.org/wiki/Phasor> , which may be considered as > a use of Argand diagrams (complex numbers plane). > > To keep constant amplitude, if you want to, is like rotating dots so that > they keep the same amplitude (distance from centre). This is usually not > easy to do, but you already have a components representation using sigmund~, > so you have the opportunity to fudge the freqs a bit... > > ______________________________**______________________________** > ___________ > | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC
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