Standard audio.

StdAudio is a library that you can use to play and manipulate sound files. It allows you to play .wav files, to write programs to create and manipulate arrays of double values, and to read and write them as .wav files:

Standard audio API
We first introduce some some basic concepts behind one of the oldest and most important areas of computer science and scientific computing, which is known as digital signal processing. Copyright © 2002–2012 Robert Sedgewick and Kevin Wayne. All rights reserved.