
20 CHAPTER 2. SAMPLING AND RECONSTRUCTION
There are many other audio file formats we don’t have time or space to discuss. The
*.wma file format, for example, is a proprietary Microsoft standard for compressed audio
files created to compete with the *.mp3 file format. The *.m4a file format is an open
standard for compressed audio files intended to be the successor to the *.mp3 file format.
The older, but simpler, *.wav file format is a free and open standard that most commonly
contains uncompressed linear pulse code modulation (LPCM) audio data, similar to the
audio encoded on CDs. We prefer to deal with *.wav files for our purposes here. Even
though the *.wav ...