Key Tracking for the Filter?

Elektron Gear Analog Rytm
1

Hey folks,

after a look into the manual, fiddling around with the device, diving into settings and menus … I wonder: Is there a way to key track the filters of the Analog Rytm (MK1)?

Thanks in advance, guys

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AFAIK not possible. Eventually possible with external midi + midi processing, matching notes to filter frequencies Control Change by range.

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Mapping note # to velocity with a midi processor and then setting up a velocity macro on the AR opening the filter could be another convoluted-yet-simplerish alternative.

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Good idea! Btw, if Velocity mod works for key track with a specific range, it can be plocked. :slight_smile:

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So in Velocity Mod I found a setting in order to have 1 velocity value = 1 semi-tone
May vary depending on machines / calibration
Not perfect.

Velocity Mod : dest =filter, Depth = 125
Filter : Bandpass, Freq = 0, high Resonance

Play a tuned sample.
Find the fundamental of your choice.
Plock velocity
Apply a square lfo with depth = +12 (1 octave up / down)
…

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Landed on this thread today while working on the same technique. What I found for velocity mod mapping to freq cutoff is:

Freq cutoff itself is 1 semitone per unit. So when using Velo Mod on the cutoff, if you set the Depth to 64, you get 1/2 semitone per unit of velocity (or, 1 semitone for every 2 units of velocity). If you could set Velo Mod to 128 you could get 1 semitone/unit, but alas it only goes up to 127.

But use a Depth of 64, and then you can set the Cutoff itself to whatever base note you want, and then play your notes by setting the velocity of the step, e.g. a velocity of 2 == 1 semitone up from what you’ve set your Cutoff to, a velocity of 4 == 2 semitones up. You get more than 5 octaves of range above whatever base frequency (cutoff) you pick.

A nice side effect of this approach is that once you’ve got your “melody” using velocities, you can transpose the melody by just changing the cutoff frequency setting.

Also I found that using a 24dB lowpass filter gives the purest tones if you’re using a noise source (the noise is barely audible). Gives me something more to use all those Tom tracks for…

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@pokk did some nice work with the keyboard tracking both with velocity mod and with static lfo mapped to filter frequency, there’s a nice chart you can follow to roughly dial in the values:

I can’t recall in which video he sets up the lfo but here’s one with the velocity mod and explanation of the process for example:

(obviously with velocity mod you can map not only the filter but 4 params simultaneously, which is very cool)

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Update: I realized today that you can just set TWO mods for Velocity to Filter Cutoff (i.e in the Velo Mod menu, pick Filter Freq for two of the four parameters), and set them both to a depth of 64, and that gives you perfect pitch tracking; 1 semitone per step of velocity.

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Cheers

I want to do a video just on keyboard tracking somehow. Such a great tool for creating movement and extracting more from a simple pattern.

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Nice find !

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but why both?

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Limited to 127 with only one destination.
With 2 destinations set to 64, you reach 128.

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sorry but stuck how to achieve this filter tracking - please explain one more time of those of us with calcified brain cells

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Have you followed the steps described one by one?

  1. Set filter to resonate (easy with peak filter at 64 + higher reso)
  2. Velocity to volume off (just for easy hearing)
  3. Vel mods to Filter Frequency +64 + Filter Frequency +64
  4. Place some trigs.
  5. Lock different velocity values to those trigs. (10, 20, 30 …)
  6. Hit play and listen.

PS Reason for double assignment in Velocity Mods is that every value is doubled that way so you increment by 2 velocity units always which means a half tone.

Edit: Oh… just forgot. You need an impulse machine to ping the filter, of course. :wink:

Demo:

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thanks i can do this but i can’t play it chromatically from the pads

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Maybe you should take some time to ask exactly where you fail in detail? Would have saved me some time.

Anyway: Nobody said you can play it from the pads afaik

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ah sorry man my bad - so frustrating coz i think i did it once from the pads like years ago but i forgot how to do it, if i ever did, anyway its driven me mad now for few days sorry for the bad posting

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The only way I can think of is using a midi processor to map velocity to notes and then you can play the velocity itself via notes.
Probably best to use a pad controller or keyboard then to avoid having midi go out of the Rytm, into a processor and back into it again.

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i remember how i did it now, assign an impulse to every pad and set a different note for each pad using the filter freq so i get a sort of twelve note keyboard with some choking notes and some sustaining - sounds like a thumb piano

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Well… that‘s radical limiting down to the level of a toy piano. But… if you ever come to play live with it, make sure to record a video of the performance!! :grin:

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