Thanks Urs! You have provided a perfect lead-in for introducing my latest enhancement! I have expanded the patch bay yet again to allow for pitch modulation pre and/or post quantization. After reading your post, I just completed a patch that uses slew in the patch bay, and it sounds gorgeous! Give me a few minutes to record and post.
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So here are the patches with the expanded patch bay, built in usage notes, and examples of using slew limiters via the patch bay.
Subharmonicon Emulation v6.1 with arpeggiated Slew
I started the patch with sequence 1 applied to Osc 1, and both sequences 1 and 2 to Osc 2. To get the arpeggiated slew I then disabled the sequence 1 to Osc 1 and patched the Seq 1 output to the Befaco Slew Limiter with rising slew only. The slewed output is then patched to Quantizer 1 input. I also disabled the sequence 2 to Osc 2 and patched Seq 2 output to another slew limiter with falling slew only. This slewed output is patched to the Quantizer 2 input.
The quantizers turn the slewed V/Oct input into arpeggios. The Subs automatically follow the quantized V/Oct of the main oscillators, so they also produce arpeggios.
Subharmonicon Emulation v6.1 with true slew
This demo patch is almost identical to the arpeggiated slew patch, except the slewed V/Oct CV bypasses the quantizers by patching directly to VCO 1 and VCO 2 V/Oct inputs. Of course this means I must also patch in extra quantizers before the slew. Since the built-in quantizers were bypassed, I also patch the slewed V/Oct CV to the Sub V/Oct inputs as well so that they remain in tune with the main oscillators.
I like purf’s idea of converting the emulation to directly support stereo, but that is a significant change to the Harmonicon architecture. I know how to implement stereo VCF and VCA, but I need to put in serious thought on the internal connections and the patch bay architecture. I will save that for another day.
I seriously need to get back to working on my premium plugin with the Sofia emulation. I am recently retired from the federal government a year or two earlier than I was planning. (Interesting times we are living in) So I need to generate some revenue streams to supplement my pension and Social Security to help make up the difference! My house is not paid off until next year!
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I am going nuts waiting for the release of my first premium Venom plugin in four days, and I needed something to occupy my mind at least for a while.
I was watching @VirtualModular’s tutorial on emulating the Moog Moogerfooger, and it got me to play around with the Bogaudio filter bank and Squinky Labs band pass filter. I ended up with this drone that I like.
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That sounds great! PEQ-14 is a seriously underrated module. Bogaudio also have a FFB, but it doesn’t have CV inputs for the frequencies of each band (although you can always use Stoermelder Map).
That’s why I made one from scratch 
The only thing with the PEQ-14 module is it doesn’t seem to accept poly modulation, so you can’t change the bands on each individual channel. Might be wrong but I don’t think it does.
I can see the psytrance crowd liking that patch!
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PEQ-14 does support polyphonic modulation of each band frequency. But it only recognizes FCV polyphony if the IN input is polyphonic. From the documentation:
Polyphony: polyphonic, with channels defined by the IN input.
Bogaudio is pretty consistent in how it treats polyphony - there is generally a single input that defines the channel count for the entire module.
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Thanks, I’ll have to test that again. Modulating the individual bands didn’t seem to work, but you’re right in that all the Bogaudio modules are poly. Makes some cool guitar effects though.
Correct, in that it won’t work until you patch in a poly signal to the IN port. Even then, it will only recognize as many channels as appear at the IN port.
You’re right, it does work polyphonically but it’s possibly one of the modules where doing that isn’t worth it. You almost get a weaker effect, because you don’t hear the frequency bands sweeping as clearly if you use loads of channels at once.
Also it’s a lot if patching if you want different multi-channel mod sources on all 14 inputs! 
Benjolin Bohlen Pierce Jam
Here is a fairly simple fun patch using the Venom Benjolin Oscillator plus a couple expanders to chaotically generate all V/Oct sequencing, triggers, gates, and CV modulation for the entire patch (except for some VCO feedback phase modulation and feedback linear frequency modulation).
The Volts expander is configured to generate notes in the Bohlen-Pierce scale without the need of any quantizer. The Bohlen-Pierce scale divides an octave + perfect fifth into 13 even intervals, so this is a non-octave repeating scale with non-standard intervals.
This patch started out as my first musical experiment testing out the new Venom AD/ASR Envelope Generator (not yet released). Follow the link to see the development arc for the module - there are a bunch of dev releases. I didn’t do anything crazy with the EG in this patch, though it has lots of capabilities.
I opted to restrict myself to only using Venom and VCV branded modules, with the only effects being a bit of delay for the high voice, and reverb for the entire patch. Other than that, the sounds from the two VCO Unit oscillators and the VCV Drums are raw, with simple modulation providing the interesting timbres.
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Tonight, Aug 26, I will be performing a 5 piece set as the featured artist at the Takoma Spark - one of Rob’s Open Mic events. Three of the five pieces will feature VCV Rack. They will all be variations of pieces from my new album Fundamental Air
Besides the YouTube link above, It will also be live on Twitch and Facebook
My guess is I will go on sometime between 8:00 - 8:30 pm for a 25 minute set
EDIT - My introduction occurs around 1:32:10 into the video. Not sure why, but a time-stamped link isn’t working for me
If you can’t catch it live, the recordings should be available indefinitely. (for better or for worse ) I haven’t played most of these pieces since they were recorded years ago!
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Thanks for tuning in!
Oh this was very nice. Thank you for sharing Dave!
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Yeah thanks! Very sweet music.
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