MF-101 and Analog Sequencer Question.

The Moog Forum Moogerfooger Forum
1

Hi…

I was wondering if you’d be able to use an analog sequencer to trigger the filter of the MF-101? Since the 101 has a resonant filter, I was thinking I’d be able to use it to make kick drum sounds triggered by my sequencer.

Can anybody tell me if they have experience with this or know if it can be done?

Thanks,

rjm.

2

Hey,
I have definitely done a fair amount of triggering the MF-101 from my Frostwave sequencer but I was never aiming for drum sounds. Read my first post on “Frostwave & Moogerfooger:Two great tastes…” to see how I set it up. I guess the sounds might be more drum-like if the gate signal were very, very short? Not sure… I’ll mess around when I get a chance.
R

3

Thanks for the input.

4

By the way…what kinds of sounds were you getting on your 101 with the Frostwave?

5

I’m getting a frostwave fat controller in a couple of days, and controlling the mf101’s cutoff is one of the things I’m really excited about trying. I love the sound of the 101’s resonance - even gone so far as to put littile pencil markings so I could better control pitch when I play it with my hand. You can, with a bit of practice, play entiire scales with it. So the frostwave should be good fun. I’ll let you know how it goes.

6

So I got one of these and it’s great with the 101. The tone of the resonator is great for making melodies or basslines. The controller’s really simple to use. The sliders are heavy enough to that it’s easy to find whatever pitch you’re looking for.

One insteresting thing I’ve tried is to have the controller play line using the cutoff, and play another instrument along with the melody. Good fun.

7

Since there’s no envelope on the 101, what kind of textures can you actually get with just the pure filter? It seems limited since there’s nothing to shape the filter with…

8

There is an envelope on the 101…

9

Ok…would this enable you to make kick drum type sounds…for instance, then?

10

The problem is that I don’t know how you can gate it. I got the controller to play my moog. So having it to play with my mf101 is just an aside. The controller has gate and cv outputs for each channel. So you can run the cv into the cutoff, and that works well to controll pitch. But that way you get a constant drone from the resonance.

I tried different comibations of the gate and cv from another channel into the resonance, mix and audio in, but got nothing really like a bass drum. The ones that were close where strung together. I had hope for the cv controlling the resonance, so that when when that note was hit the resonance would quickly rise enough to self oscillate, and the decay. But it didn’t really work.

If anyone has any suggestions I’d love to hear them.

Thanks.

Oh, and as far as the texture of the tone, yes it is limited, but it is a sweet sounding one. You know how it sounds just from making resonate on your own 101. So it just does that with you being able to control the pitch.

11

As I said in my post of 5-6 months ago:

“CV output A of FC into CUTOFF input of 101
Gate output A of FC into MIX input of 101 (via lag processor of 251 to smooth clicks)”

Now in this situation, the Gate from the FC (Fat Controller) is going to the 101 mix input and the resonance is cranked all the way up. This works because since the resonance is a product of the filter alone (as opposed to a signal from the input) it is not present when the mix is 100% dry.

As I mentioned, the Gate signal is going through the Lag Processor on the 251. This effectively turns the Lag Processor section into a simplified ENVELOPE GENERATOR with the UP and DOWN controls corresponding to ATTACK and DECAY.

I can’t try this out right now with the basic setup, since I have gotten rid of the 251 in favor of a full-fledged modular. Since you are going for for drum sounds, I imagine you might want bass drum and snare sounds, a 251 might be handy for the lag and the white noise (essential for grimy electronic snares).

Good luck,
Nex week we will discuss using the lag processor as a low pass filter ; )
R

12

Thanks for the tips. I have a 251, so I’ll follow your instructions for that…

13

Thanks for that Rakuza. When I tried it I must have had my mix to weak.

14

i just got one of these, works great.

15

Hi,
OK, responding to two posts at once here…

To Peter Ripa: How do you deal with the difference in voltage standards between Korg and Moog?

To Tuned Low: When you say you had yr mix too weak, not sure what you mean… MIX knob should be set to zero, so that you only hear the filter when it’s getting the gate signal.

R

16

i have an ms02 to convert between the standards but it is not really needed here since you dial in the cv with the pot. the scaling on the pot when controlling pitch is a bit different but you have to do this by ear anyway.
besides i´d rather sequence something other than pitch and play the notes on a keyboard.