TrevoX-VCV-MM

TrevoX-VCV-MM is an eXample VCV Rack created with the spirit of the Minimoog, with the added feature of a step sequencer (in the spirit of the Mother-32).

This Rack is similar to a Model D Reissue in that it has 3 oscillators, noise, 2 envelopes, LFO and various modulation options. In addition to that, it has a sequencer, reverb and 2 delays, EQ and Compressor at the output.

It uses only VCV, Audible, and NYSTHI modules. For a lighter patch, remove the EQ and Effects. Take the output from the Amp Env VCA-2.

The Zip file shared on PatchStorage.com includes 7 example racks using the patch with different settings. 

TrevoX-VCV-MM-v1-01.vcv – Oscillator 1 saw, -1va below Middle C, no Filter. This is a full reset patch
TrevoX-VCV-MM-v1-02_Reset-Lite.vcv – Light version of the above (no Vis or FX). Also, the SL (“Glide”) has been removed. This only uses VCV and Audible modules.
TrevoX-VCV-MM-v1-03-Fat_Bass.vcv 
TrevoX-VCV-MM-v1-04-Squelch_Bass.vcv
TrevoX-VCV-MM-v1-05-Bass_Drum.vcv
TrevoX-VCV-MM-v1-06-Square_Lead.vcv
TrevoX-VCV-MM-v1-07-Sequence_with_Effects.vcv

Thanks to core tan, Jack Nelson, balspect and Rishabh Rajan for their VCV Rack and Minimoog information and inspiration.

For details: http://TrevorHenthorn.com/TrevoX-VCV-MM

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80 PM
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  • Category: Synthesizer
  • Revision: 1.0
  • License: Academic Free License v3.0
  • Views: 178
  • Modified: 1 week ago
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3 comments on “TrevoX-VCV-MM
  • cpmiller on said:

    Thank you for sharing this. While I understand much of it, I have some question …

    The hardware Mini Moog uses a combination of switches and dials, but you have no switches. I understand that you wanted to use VCV modules and VCV has no switch, but how are you accounting for the missing switches? And, I understand that you use the 8-vert to scale the pitch ranges. Can you explain how this works? Finally, the original uses Oscillator 3 as an LFO. How does that work in your patch? Thanks again …

  • thenthorn on said:

    Good questions!

    On the switches, I avoided them at first since the “Minimoog Model V” rack here on PatchStorage didn’t work due to the use of switch modules that weren’t updated for Rack v1.

    I, honestly always had troubles performing with the switches on my hardware Minimoog. This need, for example, to decide between Osc 3 and EG or between LFO and noise for control. Sure, it reduces adjustment down to a knob, but seems to require more brainpower to control. After using my setup for a while, I far prefer a 4-channel mixer over the combination of 2 switches and 2 knobs. As for the on/off switches on the MIXER section, personally, I don’t see them as necessary. I’d rather have one control rather than a switch and a knob (or slider). So, yes, I eliminated 11 switches!

    On the pitch control, my need for attenuation came from the desire to use of a 1-octave sequencer rather than a 44-key black-and-white keyboard. For the sequencer, I attenuate that output by 10% so that the sequencer knobs span 1-octave.

    On the Oscillator pitch control, the knob on the VCO-1 module itself is useless. The range is too high (on the Minimoog, the range is +-7). In the VCV module world, using an 8VERT to attenuate to 1/12 (8.33%) works well. I use 2 8VERT knobs for this, one that is adjustable and a 2nd 8VERT knob to attenuate at 8.33%. This way, the first knob can be changed and it is scaled. Of course, other modules could do this more elegantly, but with an external controller, once setup, the size and position of the knob doesn’t matter so much.

    On Oscillator 3, yes, that’s tricky and, honestly, my realization isn’t perfect. I use two OCT modules to drop the level down to “Low” level. Set both of the OCT modules to the lowest for “low”. Now that I’ve played with this, I prefer the 2 OCT combined with a frequency adjustment over the simple “low” setting on the hardware Minimoog.

    I will mention that using a VCO-1 is not ideal for a “low” oscillator. While it works well for sine and triangle, the square wave is just a spike at very low frequencies. The “low” setting really deserves a different module (or a combination of modules that switch at on the “low” setting).

    Let me know if you have other questions. After I gather some more input, I may rework this patch …

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