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PDO mk​.​2 + TBVCA - Demo 02 (Full Track)

from WMD PDO mk​.​2 + Triple Bipolar VCA by Matttech Modular Demos

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For this demo I wanted to produce slightly more traditional synth tones, with various outputs of the PDO used layer up and embellish a simple repeated riff, but without things becoming too gnarly and noise-like (although this does inevitably happen at points, due to some enjoyably over-zealous knob twiddling!). The only synth sounds heard come from a single jam, using the multiple outputs of a single PDO. There are a couple of "special effects" sweeps that appear here and there (eg: at around 02.30, in the background), but that is it.

PATCH DETAILS:

1. The basic patch is similar setup to Demo 01 in some ways - two channels (1 and 2) of the PDO are centered around producing soft, rounded bass tones based on sines - whereas other channels are more searing and chaotic.
2. Channel 3 is sent via the Schippmann VCF02 to add further modulation to it, and to tame some of the harshness.
3. Channel 4 is probably the most savage of them all - possibly due to the build up of phase modulation in the TBVCA, as each channel feeds into the next. This was sent to a VCA and gated at points.
4. The SUM output was also used earlier on, with a similar gated VCA approach applied to it.
5. The 4ms PEG is providing much of the modulation, with one side being modulated by a slow z8000 4 step sequence to produce predictable(-ish) varied rhythms. This side's EOR trigger is sent to ping the other side of the PEG, and this is set to a different division, so that it mirrors the first envelope, but at a slower speed.
6. The PEG's two channels are used to modulate the TBVCA's CV inputs (which control the amount of Phase Modulation applied by each channel of the PDO to the next), and also to the Schippman filter.
7. Various different filter modes are used at different points during the recording.
8. Towards the end some Linear FM is brought in from a Dixie, via a VCA controlled by Maths. I manually tweak the RISE time on the envelope until the FM takes over the PDO patch. After that I switch to exponential FM
9. As you'd imagine, this is where things get pretty chaotic!

credits

from WMD PDO mk​.​2 + Triple Bipolar VCA, released January 16, 2014

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