Stomp box synthesizer

[Brian McNamara] fed the output of his guitar pedal back into its input creating a looped synthesizer. He started with an effects pedal he made but now we think he’s ended up with an electronic stomp box. Check out the results in the video after the break. Now he needs to make the knobs foot-friendly so he can monkey with this while playing guitar.


  1. Paul says:

    plane sound @ 1:11

    that could be potentially awesome in some sort of electronic guitar solo :P

    although it looks like he had to “pop” it into making lots of noise. Perhaps it needed a little reverb-type input to start generating noises?

  2. Sven Meyer says:

    Sounds very destructive…somehow reminds me of the outros nirvana played at their shows ^^

    Real good work, i could imagine to use that thing with my bass guitar

  3. arthurgrimley says:

    You might be interested in the “no-input mixer”, I’m sure there’s better documentation that this, but for starters:

  4. blue carbuncle says:

    Neat find! I had an autowah in college(that got stolen of course) , that was broken when I got it, and made some delightfully awful drones even when nothing was plugged in. I would also highly recommend a TurboRat. That and a household Yamaha PSR 220 were pretty much “the band” in my digital hardcore days.
    Cool find though man, take me back and inspires me to go tinkering with the keys tonight :)

  5. Brian also designed the GrooveAxe and the NoiseAxe on Gadget Gangster a while back – he’s done some really creative things with a PICaxe 08M!

  6. This sounds 10000x better than any circuit bending project I’ve heard.

  7. walt says:

    circuit bending is getting pretty lame. but this is kinda cool. although, i’m really getting sick of all the noise boxes. i say, do your homework and build real analog modules or even synths

  8. Mr. Oby says:

    so does it for sale or you would shared it schematics..??

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