The SoundDuino Arduino sound shield is capable of working with voltages from 3.3v to 5v and if you use the other Arduino boards, the only pins that you require are GND, VCC, RX, TX.

Open Sound Control (OSC) is a communications protocol that can be seen as a modern alternative to MIDI. It’s specifically designed to play nicely with network communication systems. The problem ...

Arduino board programmed with an audio file Programmer Mike Tsao has devised a clever method to program an Arduino board using sound.

Make shows off how to build your own version of that device that's a little smarter and more useful. Make's guide uses an Arduino so you can set specific sound pattern for each outlet in your house.