FM-able, synchable sample playback? (was: Re: [sdiy] Voltage-Controlled Sampler?)

[Martin Fay]

>This reminds me: in VAZ Modular I can apply
>exponential FM to existing sound files up to a quite
>large index (8 oct?)

Only 4 octaves, stacking both FM inputs.

>Is there any synth, hard or soft, that allows *linear*
>FM of an arbitrary soundfile (as opposed to small
>wavetables of fixed proportions as in the Wiard and
>other modules)? Or even of live input (a minimal delay
>while it's written to a file wouldn't matter)?

I've been thinking about this while I've been working on the Sine
Oscillator (i.e. Yamaha FM/PM) module on the latest VazMod. I can see
at least a couple of potential problems... Through zero will
complicate the algorithm as it will have to deal with a playback index
less than zero. Also a constant modulation index will be problematic
if the pitch of the source sample is varying.


Martin

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