Polyphonic Unison

Post any handy Voltage tips or tricks you've come across here.
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Posts: 7
Joined: Thu Jun 06, 2019 10:34 pm
Location: Sweden

Sat Jun 08, 2019 4:57 pm

Instead of destroying the "Suggested New Module/s" chatting about how to work-around the fact that there isn't a Unison module with polyphonic inputs, I'm posting it as a new thread here under the "Tips and Tricks" section :D

Screenshot of what I finally made:

I've also attached the Voltage Preset file if anyone wants to download it and have their own go. This patch uses around 35% of my CPU. You've been warned ;)

If you double the setup as it is now, you can push the unison to 8 voices but that will probably make your fan spin ridiculously while your CPU will smell funny :roll:

I've used the two first knobs to control the cutoff freq and resonance on all the filters. Knobs 5 through 8 are the ADSR for all VCA envelopes while knob 9 is the Detune for the oscillators.

Anyhow. It should give you some ideas how to make polyphonic unison patches. Let me know how it goes!
(DL) Poly Unison Pad.voltagepreset
(40.69 KiB) Downloaded 16 times
Posts: 4
Joined: Mon Jun 03, 2019 3:20 pm

Sat Jun 08, 2019 5:18 pm

Thanks for the pic and the preset - and for moving the topic to a new place. I'm looking forward to digging into it later when my day frees up. :)
Posts: 4
Joined: Mon Jun 03, 2019 3:20 pm

Sun Jun 09, 2019 1:09 am

Great preset! I kind of took what you did but substituted one PSP eFemerizer module for the separate oscillators. That allowed for only one of each module instead of four.

Pros with the eFeM:
More voices for bigger chords and lighter CPU load
Can easily change the Waveform type and octaves
More compact

The width control on the stereo spread module is kind of wonky, not as smooth as the other patch, voices jump around more
Detuning is tricky. I'm not sure exactly what the settings are in the Poly Unison module, but recreating it with the Shift controls on the eFeM is difficult. Maybe there's a better way to set up a single control knob to subtly shift the pitches but I'm nor sure how to do that.

At this point I would use the DL patch because it sounds better, but if the stereo imaging and detuning of the eFem patch could be improved I'd rather use that one for more voices and less cpu.

chord_unison.png (788.75 KiB) Viewed 165 times
chord_unison.png (788.75 KiB) Viewed 165 times
EVO Chord Unison.voltagepreset
PSP eFeMerizer chord unison
(15.1 KiB) Downloaded 28 times
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