CompuServe Messages

AMIGA-MUSIC

#: 36362 S1/AudiophileForum unknown
    15-Oct-86 17:18:22
Sb: #36330-AMIGA-MUSIC
Fm: Richard Rae 72177,3516
To: Chris Grigg 76566,672

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Chris, Hmmm, I think I might call you on this one. I agree that "the audio effect is very different…" between Amiga FM modulation and DXn FM modulation, but because of the reason you cited second: the number of operators and the way you stack them. FM versus PM should have very little to do with it, as one is sort of a special case of the other. Other questions are more important, such as what happens to the phase of the modulated waveform when you drive it through zero hertz into the negative frequency domain, and are you doing linear or exponential modulation. With the other factors the same, one can do anything with FM that another can do with PM. I agree, by the way, with your implied comment that additive synthesis is the way to go on the Amiga, not FM. Anything you can do with FM, you can do with additive… and a whole lot more. If you're into this sort of thing you might want to dig out some of Chowning's papers on the subject. I think Chamberlin touches on some of it in his book as well. Oh, and Bernie Hutchins and the MEG is an excellent source, if he's still around (haven't heard from him in years). I dunno about you, but I'm not gonna be bored for a long time to come! 8)