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ld padsyn v1.02 (C) 2001 Lauri Koponen
Description - A very good subtractive synthesizer
Phasemod system
Both main oscillators (osc1 and osc2) have support for simple
"phase modulated waveform mixing". By setting the O(1/2)PType
parameter to 'Sub' or 'Mul', the synth generates two waveforms
instead of one, with phase difference of O(1/2)PShift. If
OxPType is 'Sub', output is wave1 - wave2, and if OxPType is
'Mul', output is wave1 * wave2. Try this with some oscilloscope
plugin (Geonik's Visualization) to see how the waveform
is affected.
To generate PWM pulse wave, set osc1 or osc2 waveform to Saw,
PType to Sub, and alter pulse width with PShift. PShift can
be controlled also with the LFOs.
Osc2 phase shift affects the osc2 phase even if O2PType is set
to 'None'. This can be used with for example FM to get different
waveforms.
FM and FM modes
Osc2 always modulates Osc1 frequency.
There are a few FM modes. I think 'Sub' is the way Reason (by
Propellerheads) does FM, but 'Mul' is a "more correct" FM algo.
'Add' and 'Sub' just change osc1 phase, while 'Mul' actually
changes the oscillator frequency.
There are known stability problems with high FM values with
high frequency signals.
About detuning
The global tuning parameters have been added as attributes in v1.03.
It seems that what my synth uses as 'cents' are actually 1.5 cents,
so... better get used to it ;)
- ld0d (C) Lauri Koponen
Visit lD0d's website