On Tue, Dec 25, 2007 at 12:31:05AM -0800, Spencer Russell wrote: > One thing about linear systems though, is that the output doesn't have > any frequency components that aren't in the input signal, it just > scales and phase-shifts frequency components according to the > frequency response. A snare rattle can generate wideband-ish noise in > response to a single frequency that makes the snare head vibrate, so > it's a nonlinear effect. Well, it *is* possible to do this using IRs and convolution, by having many convolutions in parallel: one working on the signal x(t), one on x(t)^2, x(t)^3, etc. This allows simulating a time- invariant nonlinear system. Not so easy in practice. Farina has a paper on it. Resonance of the toms: delay + high-Q resonance. -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia Lascia la spina, cogli la rosa. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
