LFO to control filter cutoff frequency?

The Moog Forum Minimoog Forum
1

Hopefully this question will be easy to answer for any Voyager owner. Apologies if it’s naivity distresses anyone! Here goes:

I’m reasonably familiar with the Minimoog, having used one regularly many years ago.

Recently at a gig, I heard what sounded like a Minimoog playing a repeating figure, with the filter cutoff frequency being swept rhythmically back and forth, cycling over a period of a about 5 seconds. It sounded so precise that I wondered if the cutoff frequency was being controlled by an LFO sine wave (it sounded far too precise to be a manual sweep).

To the best of my recollection, you can’t do this on a 1970s Minimoog. I got hold of a (heresy!) softsynth Minimoog emulation to check this, though I found that the one I tried did in fact go beyond the original Minimoog specification and had an extra LFO which I could assign to the frequency cutoff to achieve the effect I wanted to hear. So, I figure I’m on the right track.

From the Moog website I see that the Voyager differs from the original Minimoog by also having an extra LFO, and I gather this can be routed to different destinations. Is that correct, and can it be routed to affect the filter cutoff frequency? Would the Voyager be capable of creating the sound I want to hear? And if not, does anyone have any ideas about how I could achieve this effect?

2

Don’t know about the original Minimoog, but with the voyager you can definitely do this, and very easily so.
You can route almost everything to almost everything via the mod busses and pot mapping.

Dom

3

On the original Minimoog you could switch the audio of the thrid oscillator off and set it to LFO like frequency ranges.
Than you have to disable the modulation of the oscillators and switch on the modulation of the filter (cutoff).
Of cause the amount of modulation has to be dialed in by the modwheel.

I am still in love with my Minimoog I bought late 1982.
It is still doing fine.
But I use my Voyager for sessions and concerts/jams.

4

That sounds like a MuRF!