hi, dear list !
here's one for all synth wizards ...
in trying to understand sound synthesis a little better than i do,
i'm attempting to clone a nice VST synth that i like a lot (POLYVOKS).
it's a fairly simple synth and i understand and can recreate most of
it's features and functions, safe for the following:
POLYVOKS has 2 Oscillators. Osc 1 can be modulated by 2 different
sources:
1.) a global LFO
2.) Oscillator 2
while point 1 is easy, i didn'zt succeed in finding out what's going on
when OSC 1 is "modulated" by OSC 2. it doesn't sound like any of the
classical
modulation techniques (RM, FM, PM) but more like a
combination/modification
of the above that i'm not able to figure out. my guess is that the OSC2
get's
itself "modulated" while it modulates OSC 1 (depending on the mod
amount)
please, if anybody might want to have a look at the following example
patch.
it includes the things i tried so far and a 4 second sample of the
original
(= the modulation effect recorded from the VST synth).
http://klingt.org/fileservice/downloads/00693153753552230-mod_osc_210918.zip
my testing setup was this: the synth got a note (C1) and both
Oscillators
had the same waveform (sine) and octave offset. then i raised the
modulation
(OSC2 -> OSC1) from min to max, over a course of 4 seconds.
if anybody has an idea what's going on here, that would be a big help !
thanks a lot in advance
oliver
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