Tiptop fold processor modded to be a cv sequencer

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  • เผยแพร่เมื่อ 31 ก.ค. 2019
  • Simple patch to demonstrate how the suboctave section can be used to sequence cv after bypassing the decoupling capacitor.
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ความคิดเห็น • 3

  • @peterpwn4311
    @peterpwn4311 3 ปีที่แล้ว

    wow beautiful how did you patch it actually if i may ask? cheers and keep it up

    • @jessejohannesen6149
      @jessejohannesen6149 3 ปีที่แล้ว +1

      Thanks, heres what I think I did here: after bypassing the decoupling cap on the suboctave output (soldered a wire across the leads of the capacitor, had to take the panel off), I had to run the signal through an inverter (the mixing circuit uses an inverting mixer to sum the 4 divided signals so it comes out upside down and needed to be flipped to make the signal positive) then I just ran the cv into the V/O input of an oscillator (akemies Taiko) and I think I used an lfo as the input to the wavefolder to get a pattern out, but I cant remember which.
      This idea came to me while I was looking at the module in my local shop a couple years ago. I started thinking about how mixing square waves gives you a steppy voltage output with 90 degree angles (lots of jumps to voltage levels that then stay flat at that voltage until the next jump) and thought to myself "this would be a sequencer if you slow it down enough". I thought about it for a while, but after doing a bunch of digging I found out that the module's divided output is AC coupled meaning that there is a capacitor in the signal path that prevents the signal from holding it's voltage for long, so instead of steady voltages on the output it would make a peak and then go back down to zero, which wouldn't work for a sequencer. I decided not to get one.
      About a year later I found one for cheap on craigslist and bought it just for this experiment. I got it home and cracked it open, and within a few minutes I had bypassed the decoupling capacitor and got to patching. The inverted output was initially really disheartening, but I remembered I had a WMD toolbox which has an inverter in it (I could have also used Maths' middle channels now that I think of it) which saved the day.
      In between the time I thought of this and the time I found the module used, I had been thinking a lot about this concept and eventually it led me to the development of my sequencer Aristotle, which operates on similar principals.

    • @peterpwn4311
      @peterpwn4311 3 ปีที่แล้ว

      @@jessejohannesen6149 thank you !