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Just a bit of fun messing about with CVs.

I wanted to see what effects I could achieve when sending a simple CV source through various processing before hitting the AFG's exponential FM input. Maths was used as the CV source, with a simple cycling ENV (i'm calling it an "LFO" for clarity). The CV processors were the a189-1 bitcrusher and the STG Wavefolder. The only audio you're hearing is the AFG's sine output. The patch is a little bit involved, but i'll try my best to explain it:

1 - AFG sine out to audio interface
2 - cycling Maths "LFO" to a189-1 input
3 - a189 output multed to wavefolder input and one side of synthwerks crossfader
4 - Wavefolder output into other side of synthwerks crossfader (so i can crossfade between direct output of a189-1 (bitcrushed Maths LFO) and the version that ALSO goes through the wavefolder for further processing
5 - AFG's saw wave sub output is sent into an a132-1 VCA (modulated by the same Maths LFO that's affecting the FM on the AFG). the output of the VCA goes to the wavefolder's AMOUNT input - so, as the LFO opens the VCA, more of the sub osc is let through to control the wavefolding amount.
6 - The a189-1's output (the bitcrushed LFO) is also multed to a second a132-1 VCA, and then on into the wavefolder's OFFSET CV input. This VCA is CV'd by a second Maths ENV which is triggered by the "End of RIse" (EOR) output of the first Maths LFO - so, every time the first Maths LFO reaches its peak, it triggers the 2nd ENV.....which opens the VCA, letting more of the a189-1's output control the wavefolder's OFFSET

Simple!

Some pretty cool results spew forth.

I start off with the Maths LFO unprocessed, then gradually start reducing the BC knob on the a189-1 (bitcrushing it and making it do odd stuttery effects)

Then i start crossfading to the output of the wavefolder, which is being CV-d to oblivion by the AFG sub and the a189-1's output, via the 2 VCAs.

Then, after a while i start messing with the speed of the main Maths LFO, and fiddle with the various wavefolder controls.

Near the end i start messing with the AFG's main pitch and the Exp FM amount

All good fun!

credits

from CVs through Wavefolding + Bitcrushing, released June 27, 2013

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matttech offcuts Manchester, UK

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