Moog Music Forum

Hi All,
I am trying to control the rate on three moogerfoogers via the lfo rate on the moog voyager.

I figured the routing would look like this but its not producing the intended result.

I have a patch going out of the voyager "LFO Sync" into the Cp-251 4 way multiple, with the outs heading into the rate in's on the moggerfoogers.

Any ideas?

Do you have the XV-351?

analoghaze wrote:Do you have the XV-351?

yip, that and the 251

I don't think you are going to be able to achieve what you want to achieve with several totally analog LFOs.

You possibly can sync the start of the CP's lfo's pedal input, but honestly, you are going to have different values for each one unless you painstakingly sync them with your ears.
To me, LFOs are very hard to sync, especially the one on the micromoog because the potentiometer isn't as precise as it could be. If you could make a breakout box with some very precision pots, then you might have an easier task of controlling a single lfo.


I hope this helps, I wasn't sure what you were trying to do there. You can control the rates but they won't be in sync.

Also, I thought the LFO sync on the voyager was an input?

Nope the rate on the voyager is an input but the sync is color coded blue so its an output,

least thats what I am thinking, I just got it a month ago. pretty sure I read that in the manual though.

The only outpurs on the Voyager are audio outs.

The red jacks are CV (variable) inputs, the blue jacks are gates (on/off).

You will want the LFO output via the 351 (either square or triangle) to the mult of the cp, and from there to the LFO's of the foogers.

ahhh, thanks Eric, Ill give that a go!

I think I saw that you have a VX-351 so all you need to do is route the square, tri, or S+H output from the VX-351 into the mult; then out of the other mult jacks to your foogers. I assume that you are applying the voltage of the LFO to things like CUTOFF on a Filter pedal and similar inputs on the other pedals and simply want them to 'sync' as far as when they rise and fall?

Note that all of the wave outputs from your Voyager's LFO are output simultaneously regardless of which is selected on the Voyager panel.

Some Foogers (such as MuRFs) do not 'step' to a voltage signal where higher voltage means a faster rate on the Fooger pedal, but rather, will take each square wave rising edge as if it's a gate so given a proper cable in the STEP/TAP jack, it will move one step for each full LFO cycle. You can in theory, drive a MuRF with the square wave while sweeping another effect. But the RATE input on the MuRF will not necessarily match the TIME of the 104 Delay (Eric's comment).

The Sync input on the Voyager merely resets the LFO to the 'start'. It's useful for instance, to have a patch setup that leverages LFO as part of the sound so if you route KB Gate out into LFO sync, it should reset the LFO each time you press a key. (I've never tried it but in theory that's the way it works).

Let me know if my comment above makes sense to you and more importantly if it worked for you!

EMwhite wrote:I think I saw that you have a VX-351 so all you need to do is route the square, tri, or S+H output from the VX-351 into the mult; then out of the other mult jacks to your foogers. I assume that you are applying the voltage of the LFO to things like CUTOFF on a Filter pedal and similar inputs on the other pedals and simply want them to 'sync' as far as when they rise and fall?

Note that all of the wave outputs from your Voyager's LFO are output simultaneously regardless of which is selected on the Voyager panel.

Some Foogers (such as MuRFs) do not 'step' to a voltage signal where higher voltage means a faster rate on the Fooger pedal, but rather, will take each square wave rising edge as if it's a gate so given a proper cable in the STEP/TAP jack, it will move one step for each full LFO cycle. You can in theory, drive a MuRF with the square wave while sweeping another effect. But the RATE input on the MuRF will not necessarily match the TIME of the 104 Delay (Eric's comment).

The Sync input on the Voyager merely resets the LFO to the 'start'. It's useful for instance, to have a patch setup that leverages LFO as part of the sound so if you route KB Gate out into LFO sync, it should reset the LFO each time you press a key. (I've never tried it but in theory that's the way it works).

Let me know if my comment above makes sense to you and more importantly if it worked for you!

Thanks for chiming in EMwhite!

I gave it a go, and unfortunately it didn't give me the desired results. I guess I was hoping I could somehow sync a bunch of parameters to one knob on the voyager. but the lfo rate on the voyager as noted has only the shapes available on the 351 and not the rate.

Just curious, what foogers are you using and which inputs are you interested in sync'ing together?

The LFO outs on the 351 should provide the rate, as set on the Voyager's panel. If you want to change the waveshapes from the LFO out, run a squarewave through the lag processor on the CP and you can change the rise and fall of it.

One thing I tried to do was combine all of the LFOs I have into a single destination. Analog LFOs are very tricky to control, as they all have minds of their own.http://vimeo.com/3881186 (this would have been a youtube link had IndiaTV not claimed that i infringed on their copyrights )

The lag processor is your friend. It took me awhile to figure out exactly how it worked, but after messing with it, it is what provides the percussive crash that simulates a hard drum beat heard in this video.

Eric