Design and implementation audio processing in Angstrom beagleboard

This paper describe an implementation of audio processing in beagleboard. Audio processing in beagleboard can be done with some prerequisite software. Angstrom is operating system based on linux and portaudio is library for accessing audio port, both of them are important software. One beagleboard and two sound card can transfer full-duplex communication from one device to another. Analog audio transformed into digital data and then pre-processed in transmitter device and transform again into analog signal to be transmitted and vice versa.