## Pitch modulation question

Scope and XITE Development

Original topic on PlanetZ: https://forums.scopeusers.com/viewtopic.php?t=15732

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Posted: Sat Apr 16, 2005 2:02 am
by Shayne White
I just found Pitch Modulator C in Modular -- this allows me to do linear pitch modulation, so any oscillator can be an FM Operator! I'm not sure which module allows me to do that in the SDK. Does anyone have a clue?
Thanks!
Shayne
P.S. Thinking about building a synth....

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Posted: Sat Apr 16, 2005 3:43 pm
by Shayne White
Oh, I just got it...I simply add the output of one oscillator to the pitch input of another oscillator. That was too easy....

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Posted: Mon Apr 18, 2005 9:14 pm
by at0m
Hoi Shayne,
That would make an AC frequency control... What you may want to do is keeping the original (DC) frequency, and modulating that one with the other Osc. Maybe that's what you ment, but I couldn't make it up from what you wrote.
Another remark: do all, or some, CW oscillators take sync signals for input? In modular, for example, that's usually not possible - even though you can amp-modulate the frequency by an osc, that doesn't necessarily mean the 2nd osc will react as fast as the modulator oscillates.
Just got the SDK stuff in the mail. Will have to try it out one of these!
Good luck, and enjoy the ride
at0m.