AMIGA-MUSIC
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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)