On Mon, Oct 28, 2002 at 07:42:04 +0100, Tim Goetze wrote: > >I don't know its hard to seperate phase effects from waveshaping, thats > >why it needs FFTing. Onve we have the aproximate harmonic series we can > >simulate that with a cheby, and if neccesary put the phase back with an > >allpass or two. > > ok, i'm slowly beginning to understand this i think. you mean > you plan to generate the harmonics with a time domain shaper > (like beloved valve_1209) and then 'shape the freq domain' with > the chebyshev?
Not really. Both are freq (well, and amplitude) domain only. The chebyshev is a way of generating specific harmonics, eg. you can output the fundamental + the 2nd harmonic at -6dB, the 4th at -16, the 6th at -21, etc. You can't easily control the phase though. The harmonics track the source as you would expect, regardless of frequency range (though aliasing is an issue, ofcourse). > i don't think phase shifting will make a difference (and if > it does, it's good to know you can fix it ;) OK, then all I need to do is split out the distorted sinwave and load it into octave. How Hard Can It Be(TM). ;) Fix it is probably the wrong term, I can sort of bash it into compliance. - Steve
