Moog Music Forum

I would like to have a tracking ring mod (the carrier would change based on the note that I play on my LP). I suspect that is the same as asking for the MP-201 to do MIDI-to-CV conversion. Is this on the 'to do' list for the MP-201?

Bryan

I'm starting to think that I'm the only person who uses the MP-201. Anyhow, now that I have the LP and the MP-201 I'm realizing there are lots of cool things that could be done with MIDI-to-CV, even if it isn't super fast or super accurate.

Bryan

No, Nick Montoya had two...but we won't talk about that. But I believe that adding that feature would add to the sheer awesomeness of a Chuck Norris-like pedal. If all of the suggestions that have thus far been made get implemented, the MP-201 may actually turn into Chuck Norris.

And yes. Now that you have potentially killed the fun factor of Chuck Norris memes in the General Topics forum, I will be using Chuck Norris more and more until the number of people voting that Chuck Norris memes are dead overtakes the number who chose the bottom answer in your poll.

Brian,
I at least WANT the Mp201. If I hadn't bought the Voyager so soon ago I could probably have one. I think though that Ill wait until I can really afford it and maybe then they will have changed it a bit and addes some cooler features.

I wonder if they coudl put a sequencer in there lol.

I'm starting to think that I'm the only person who uses the MP-201.

I'm just waiting to stumble across one out and about. I visit a number of stores that carry moog stuff, and always ask for it. I'm more of a "the wind pushed me that way" person, than a I've gotta order it and have it now!!

I like the upgrades they are making, its becoming quite a use able item!

But, yes if they added the ability to track to control pitch of RM, or an algorithm to assist with tap tempo delay time I'd be ordering it direct, with express shipping, and a 15% tip!! [/quote]

Bryan T wrote:I'm starting to think that I'm the only person who uses the MP-201. Anyhow, now that I have the LP and the MP-201 I'm realizing there are lots of cool things that could be done with MIDI-to-CV, even if it isn't super fast or super accurate.

Bryan

Bryan -

You're not the only one here - in fact, I've been exploring the MIDI/CV thing myself quite a bit lately.

Regarding your first post about the tracking Ring Mod: the RM doesn't track at 1V/oct - it's more like ~0.7v/oct (each RM is a little bit different). If the MIDI Note/CV conversion from the MP-201 were to produce a 1V/oct output, you'd need to attenuate the control voltage for precise tracking. Fortunately, the RM oscillator is linear over a fairly wide range, so once you get the CV scaled properly, you'll be able to produce a wide range of effect.

Related: the 'Lord of the Ring Modulator' article describes how to scale the RM oscillator using a Voyager and VX-351. Once it's set up, you can use the RM as an extra oscillator or as a tracking RM - it tracks beautifully. This same scaling technique works for the FreqBox as well.

If/when Moog adds MIDI Note/CV capability to the Multi-Pedal, you should be able to set up a tracking RM (or tracking FreqBox) with just an LP (or any MIDI keyboard) and an attenuator.

Wonderful stuff, those MoogerFoogers!

GregAE wrote:Bryan -

You're not the only one here - in fact, I've been exploring the MIDI/CV thing myself quite a bit lately.

Regarding your first post about the tracking Ring Mod: the RM doesn't track at 1V/oct - it's more like ~0.7v/oct (each RM is a little bit different). If the MIDI Note/CV conversion from the MP-201 were to produce a 1V/oct output, you'd need to attenuate the control voltage for precise tracking. Fortunately, the RM oscillator is linear over a fairly wide range, so once you get the CV scaled properly, you'll be able to produce a wide range of effect.

Related: the 'Lord of the Ring Modulator' article describes how to scale the RM oscillator using a Voyager and VX-351. Once it's set up, you can use the RM as an extra oscillator or as a tracking RM - it tracks beautifully. This same scaling technique works for the FreqBox as well.

If/when Moog adds MIDI Note/CV capability to the Multi-Pedal, you should be able to set up a tracking RM (or tracking FreqBox) with just an LP (or any MIDI keyboard) and an attenuator.

Wonderful stuff, those MoogerFoogers!

I probably got the idea from the "Lord of the Ring Modulator" article. It seems to me that the MP-201 could do both the MIDI-to-CV conversion and the scaling of the output so that the ring mod will track correctly.

I'm hoping that the MP-201 gets to the point where it is the brain behind my Moog equipment. I'd like it to do a lot of the functions of the CP-251, but give me the preset functionality. Things like mixing CV, attenuating CV (particularly if it does MIDI-to-CV), and lag processing would really be wonderful.

Thanks for the reply,
Bryan

You know, Im still trying to figure out what the heck the lag processor is all about. I have asked in the forums and gotten answers but it just hasn't clicked for me yet. I NEVER use it.

I need someone to put it to me like Im 9 years old or something, lol.


I hope to one day be able to talk 201 tips with you so you aren't the sole 201 representer here.

Eric

EricK wrote:You know, Im still trying to figure out what the heck the lag processor is all about. I have asked in the forums and gotten answers but it just hasn't clicked for me yet. I NEVER use it.

The simplest example probably involves a square wave. Let say you have a square wave that jumps between 0 volts and 5 volts every second. For one second it is 0 volts, then for the next second it is 5 volts, then for the next second it is 0 volts, . . ..

Now let's introduce the lag processor. It has two controls: rise and fall. The rise will mess with our square wave as it ascends. Turning it up will slow the transition as the wave goes from 0 to 5 volts. So now, instead of leaping from 0 volts to 5 volts, it'll gradually increase. So, the wave will be 0 volts for one second, then it'll gradually increase from 0 to 5 volts (how quickly it does that depends on the setting of the rise control), then after that second is up the wave will jump back down to 0 volts again.

The fall control works like the rise control, but in reverse. It lets you smooth out that jump as the wave goes from 5 volts to 0 volts.

So, why is this useful? Well, if you tweak it right, then you can turn a square wave into a triangle wave, a sawtooth wave, or a ramp wave.

Why do I care about it so much? It would let me smooth out wave forms on the MP-201. Some of the waves that jump from value to value cause audible pops that I'd like to get rid of, particularly with the MF-101. Just a touch of a lag processor would smooth things out nicely.

Did that help?

Bryan

Yeah as a matter of fact it did. So thats the explanation but what I need to hear is an example of function. Like for instance why would I want to turn a square wave into a ramp?

What advantages does a circuit provide with this function?

Maybe the lack of an example of this application is why i haven't necessarily understood this.

EricK

EricK wrote:Yeah as a matter of fact it did. So thats the explanation but what I need to hear is an example of function. Like for instance why would I want to turn a square wave into a ramp?

What advantages does a circuit provide with this function?

Maybe the lack of an example of this application is why i haven't necessarily understood this.

EricK

If you are working with a device that doesn't have a ramp wave, such as the CP-251, then the lag processor is quite useful for synthesizing one.

But, why would you even want a ramp?

A simple example: If you want the sound of a filter starting dark and ending bright, then jumping back to dark and ending bright, then jumping back to dark . . . that is the sound of a ramp LFO CV controlling filter cutoff.

Another example: You are using the ring mod for tremolo and you want the tremolo speed to gradually increase, then drop back down to the lowest speed.

Another: You want the feedback on the delay to increase until it is self-oscillating and then drop down to one repeat.

Bryan

technically speaking, the lag processor can be used to make things more smooth and wobbly

its pretty much like the "glide" control on old mono synths

f

Hi!
You were talking about tracking ring mod.
I play guitar and I would love to have a tracking RM.
Analogue systems have a pitch to CV converter,so can I do that with it? Can you tune your RM,so it track and in the same time detune it?
Anyway Im looking forward to build a Modular guitar synth with that,but not
in the moment.I just got MP201.

Tracking ring mod with the MP-201 is a go. Pitch CV can be adjusted on the MP201 now between 0.667 V per octave and 1.333 V/ Octave. My ring mod is about 0.73V/8ve or so, similar to Greg's.

You can have the tracking ring mod with a different glide time than your synth, or a different pitch bend amount... this creates really interesting chorus and doubling effects as you play.

Amos wrote:Tracking ring mod with the MP-201 is a go. Pitch CV can be adjusted on the MP201 now between 0.667 V per octave and 1.333 V/ Octave. My ring mod is about 0.73V/8ve or so, similar to Greg's.

You can have the tracking ring mod with a different glide time than your synth, or a different pitch bend amount... this creates really interesting chorus and doubling effects as you play.

Wow! Thanks for following up on this.