[music-dsp] Bandwith of each sound's harmonic
kaleja at estarcion.com
Mon Mar 24 08:55:00 EST 2003
> > What you've described sounds a lot like the detune
> > function built into many oscillator based
> > synthesizers. This function allows multiple unison
> > oscillators to have their frequency slightly varied
> > from the target frequency to produce a 'thicker'
> > sound.
> How does this work in practice with an analog oscillator bank ? There
> are many small effects- coupling via stray fields and nonlinearities-
> that lead to synchronization and would defeat
> the attempts to detune. Are these known to be important or unimportant?
I believe those effects are unimportant in this context;
old analog oscillators drifted out of unison on their
own (the consequent detune and "fatness" is prized as
part of "vintage analog warmth", as long as it doesn't
drift past about +/- 10 cents to become dissonant).
The component tolerances and thermal effects swamp the
coupling effects, I guess, but I am not a hardware guy.
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