Arduino Synth Page
This page is a meeting place for people making synthesizers and music generators with Arduino's (and Freeduinos).
Code Resources for making synths and implementing analog output
- uchobby articles lots of good discussion on D/A etc.
- AVR - DAC & timer tutorial
- Atmel PWM app note
- single chip synths
From a post over on the monome forums, some single chip / open source synth projects:
AVR chip based designs:
- avrSynth - Dual oscilator, DCF, DCA, plus some LFOs. Has pins for all kinds of front panel controls, plus midi in.
- 1bit groovebox - full on crazy ass chip instrument, interface, sound output, the whole 9, also quite reductive in terms of sound pallette and control logic.
Other chips
- saratronics
- soundgin - synthesized speech, some oscilators.
- critter board
- OPL3 midibox
Really simple project picaxe beatbox
Also interesting are these PARASITE modules, small audio modules intended to be added into circuit bent hardware. Of particular interest to me is the filter module, which is sadly sold out right now.
ok, that is it for now, just wanted to get this all in my database in case the monome forum goes down.
Synths made with Arduino
Here's a blurry picture of the synth
The covers are 1/4" lexan - sanded matt finish, held together with some 6/32 machine screws and spacers. Screws are just tapped into the front panel. The board is an Bare Bones Board
There's a four bit R2R ladder. I consider this an early prototype and much development is in order. The code doesn't address the R2R ladder yet.
Polyphony with the Arduino
I have developed a way of using the AD5206 digital potentiometer to control a number of oscillators (resistor-capacitor circuits), which makes it possible to easily have 6 voices (or more), with notes modified by ADSR envelopes.
Read about the project here Arduino polyphony
arduino punk console : aka programmable 8 step tone sequencer
SID-emulator 8-bit sounds using arduino
see the SID-emulator page for mor infos