Yes, your Arduino has ADC and PWM, but if you need a true analog output, you should add analog capability to your Arduino board with the help of an external DAC. The nifty MCP4725 chip could be a ...

Hard-drive based media players aren't anything new, but hifi equipment actually built from old drives are somewhat rarer. At Hifiduino they're using an Arduino microprocessor… ...

Mayhew Labs have unveiled a new DAC add-on board they have created for the Arduino platform in the form of the Extended DAC Shield that takes the form of a high-speed, precision, eight channel ...

Based around Arduino, the quality and quantity of his build notes make this a fascinating read and there are several examples to listen to.