The Auduino project turns Arduino into a PWM based sound synthesizer -
Sound is generated by playing the same noise ('grain') repeatedly at very high speed. This merges into a tone that is an audible hybrid of the repetition rate and the original grain.Only basic hardware required - 5 potentiometers, and an output jack -The grain consists of two triangular waves of adjustable frequency, and adjustable decay rate. The repetition rate is set by another control.

Looks like a cool project - details, links to Arduino code here - Auduino





































