How to make the Moog’s “Wobble” to tempo

_smund

I made a video to detail my question.

I’m curious what I can call the effect I am looking for. Being able to make this effect is 50% of why I wanted to start with synthesizers.
-I also need to know if it’s possible to set the desired “wobble” I want to respond to tempo from AUM for example.
I’m primarily interested if its possible with the Moog model D, or 15.
If you have tips, so I don’t have to flip through all the presets every time I want to make something wobble/cut-off effect to a tempo.
With Model 15 I know I can set the Mod Wheel, but I don’t know if that will have the desired effect.

animalelder

Set your LFO to a Hz that you calculate based on the BPM? Then set it to modulate your amplitude?

https://toolstud.io/music/bpm.php

Skyblazer

You can do this with any synth with an LFO that can be tempo synced; you're setting a tempo synced LFO to modulate a low pass filter's cutoff. Additionally, for slower modulations, you can use an external MIDI LFO. It would be easier to do this with Zeeon, I'm not sure if Model 15's LFO can be tempo synced.

wim

Animoog has tempo sync. Model 15 and Model D don't.

You can use an external LFO such as Rozeta LFO, MidiLFOs, or use ApeMatrix to modulate the AUv3 parameters for filter cutoff, etc. in tempo sync.

_ki

I just had a look, the LFO of Model 15 and Model D can‘t be tempo-synced.

@_smund Do you use them as AUv3 inside a host ? Do you use Model 15/D‘s keyboards or an external keyboards ?

When using Model-15 as AUv3 inside AUM as host, you can send MIDI CC from an LFO AUv3 plugin to Model-15. In Model-15, i added an additional connection from CC16 in the MidiBridges FROM MIDI section to the main filter. The filter freq has

There are several MIDI CC LFO option (Rozeta, MIDILfo, Mozaic), all of them temposync.

• Rozeta LFO goes up to 1/4 when tempo-synced, it can‘t be re-triggered on key-down
• MIDILfos goes up to 1/16 when tempo-synced, there is support for re-triggering on key-down
• Mozaic offers several LFOs scripts, depending on the script it, offers tempo-sync and re-triggering

I decided to use MIDILfos, because it offers faster LFOs than Roteta, key-retriggering and tempo & amplitude modulations from its other internal LFOs.

In my test i used the internal keyboard of Model-15 as main input. To enable the LFO retrigger on key-down, i routed midi from Model-15 into MIDILfo and changed its LFO1 from TOGG mode to TRIG.
This now restarts the LFO whenever a key is pressed on the Model-15 keyboard, which sounds nicer for slower synced wob-wobs Manually moving the LFOs rate slider changes between several sync times.

.

Here the midi routing:

This isn‘t a circular routing, as MIDIlfos doesn‘t forward the note-on‘s it receives from Model-15.

_ki

For Model-D one could route the mid of the external LFO to AUMs midi control and then assign it to Model-Ds AUv3 parameter „Cutoff Frequency“ - but in contrast to Model-15 this would fully take over the filter freq position, so one needs to carefully set min and max of the CC LFO.

.

Probably one can also assign a midi CC to the filter cutoff knob (perhaps there is even a default value) and then pipe the midi CC of the LFO directly to Model-D .