|
start | signal flow | poly mod | program select | VST
Polymod enables you to modulate an LFO with an LFO. And modulate a VCO with that.
What is Poly Mod?
https://gearspace.com/board/electronic-music-instruments-and-electronic-music-production/915062-poly-mod-what-what-does-do-2.html
If I recall, they (all revisions) have 11 oscillators total, either SSM2030s (rev1 & 2) or CEM3340s (rev3.x). The 11th oscillator, of course, being the LFO. However, given that the oscillators in the p5 have multiple-waveforms per osc, it follows, so does the LFO. You can use multiple waveforms at the same time on the LFO, which is a bit unusual feature for a polysynth. In addition, it has a ton of routing options, it's not all or nothing, you get to choose where it goes (and again, it's a multiple choice selection for where it goes) and the mod-wheel controls the amount. However, you're right that there's really only one official LFO. The riku firmware for the rev2 adds a second, software LFO. You can also run an LFO into the pedal jacks for VCF/VCA, so you can add extra LFO's that way as well.
This is how POLY-MOD is explained in the Prophet-10 manual:
"In the Prophet's unique POLY-MOD section, five LFOs (OSC B in LO FREQ mode) or five filter envelopes -- one from each of the five voices in either polyphonic synthesizer bank -- can be used as modulation sources (see above). Although the modulation routings will be the same for each voice, the minute differences between the voices (the phase relationships of the oscillators, for instance) will create modulation effects that will be slightly different from voice to voice and from note to note. This is in direct contrast to the WHEEL-MOD section where, since a single modulation source is applied equally to all five voices, the modulation effect is exactly the same from note to note."
I agree, it's confusing at first. And as you can see, it has slightly different meanings depending on which Sequential synth your working with. I think I may have gotten the term MONO-MOD from the Pro-One. Sorry if I added to the confusion!
There's only one global LFO, yes, but since OSC B has a LO FREQ mode, it can act as an LFO via POLY-MOD meaning five additional LFOs which share the same waveform but still act independently.
I discovered the source of the term MONO-MOD: it's how WHEEL-MOD is labeled on the Prophet-10.
