DESCRIPTION:
A simple explanation of subharmonic generation on a Serge Synthesizer using the Dual Transient/Slope Generator and using the Smooth and Stepped Generator to add arpeggiation. Followed by a musical example of the same. This is all Serge, no FX added.

The Musical patch: NTO square wave out (tuned to G6) to Trig In on the Dual Slope Generator. Bipolar out to In 1 on the Variable Slope Filter and to In 1 on the middle Wave Multiplier, which then goes back out to In 2 on the VCFS (mix between the two inputs to taste). Lowpass out to the output module (DCSM in this case).

SSG top half set to cycle, output sent to Active Processor In 1, Random Source Smooth output sent to In 2 and the mix is sent to a CV Processor (for scaling) and then back to the input of the lower half of the SSG. DTG set to cycle and Trigger Out sent to Sample on the SSG. Same trigger is also sent to the other half of the same DTG Trig In to be used as a simple Envelope Generator (set with a fast rise and slower fall, but make sure that it doesn't cycle slower than the incoming trigger). This EG is sent to the VCF In on the VCFS. The Stepped Out of the SSG is sent to VC In of the original DSG with switch set to Both.

Send one bank of a sequencer to the VC In on the Stepped half of the SSG, this will control the Rate. Set each step slightly higher than the preceding one. At one end, you will have a narrow bandwidth and at the other, a broad bandwidth.