Bit crushing, rate reducing, weird noises: DIY 10-bit effects/guitar pedal with an Arduino for lo-fi DSP.
Modes include:
* Bitcrush: bit shift the input to the right and then to the left, chopping off N bits.
* Bitshift : shift the input to the left, leading to a weird effect for the first few values and then eventually noise (i.e., the "dithering bits").
* Overdrive: Multiply the input by a float from 1-20.
* Binary impulse response: do various binary operations on the input and the last result (XOR, NOR, XNOR, NAND...)
Found via this article:
http://createdigitalmusic.com/2008/08/04/easy-digital-distortion-with-a-lo-fi-arduino-guitar-pedal/ (http://createdigitalmusic.com/2008/08/04/easy-digital-distortion-with-a-lo-fi-arduino-guitar-pedal/)
Video demo:
http://www.vimeo.com/1460684 (http://www.vimeo.com/1460684)
Instructable:
http://www.instructables.com/id/Lo_fi_Arduino_Guitar_Pedal/ (http://www.instructables.com/id/Lo_fi_Arduino_Guitar_Pedal/)
Edit: Oops, I didn't see this post (http://www.diystompboxes.com/smfforum/index.php?topic=69805.0) from yesterday, about the same project.
hahahaha. this is really funny. i was thinking about getting an arduino the other day and i was talking to my buddy kyle (who i know uses an arduino for various artsy purposes) about it. he mentioned that he made a bitcrusher from his arduino, and we chatted about it for a bit. so today i venture into the dsp section on the board and i see this thread about an arduino bitcrusher. curious to see if this other guy did it the same way as kyle, i check it out.
of course all the links are his. it's weird when you see people you know pop on on the internet
Nice one, I'll have a tinker with this on the weekend. Might be interesting to get some subtle LFO affecting the parameters; which is so easy to do with the Arduino.