Audio Board for Computing Culture's Number Six

by Noah Vawter and Zach Rich


You can build this audio board for doing sound art, DSP, music/audio synthesizers, homebrew effect pedals, etc!

It connects to Computing Culture's Number 6 microcontroller development kit. It features one channel of 10-bit audio in, one channel of 12-bit audio out, MIDI in/out, and the ability to have four control knobs. BTW, it is designed to be easy enough for first-time solderers to put together!

A message from the founders.


Example Sounds

Guitar with audioBoard producing tremelo effect (wavering volume)

Drum machine getting ring modulated

Guitar getting ring modulated

Software

audioBoard good 10.zip - new! Source and hex file for a basic effect processor!

Construction

Step-by-Step

Parts List, Schematic, Schematic (rotated/printer-friendly), Board Layout, Board Layout (printer-friendly PDF)

Eagle Files (schematic and board layout) Release 01, Revision 34 (.zip file)

How to use Press and Peel Blue

Datasheets

National LMC6482 Dual Op-Amp

Texas Instruments TLC5618 Dual 12-bit DAC

National LMC6464 Quad Op-amp (Low-power 6484, free samples!)

National LMC6484 Quad Op-Amp

Microchip MCP3202 Dual 12-bit ADC



Links

4th order filter design
Atmel's AVRISPmkII

Computing Culture's Number Six

to Shifty's homepage