The μ-law CODEC.
Douglas Lyon · The Journal of Object Technology · 2008
This paper describes how to use a CODEC (COder-DECoder) to encode, decode, synthesize and play AU-format audio data.The AU format use a μ -law (pronounced mu-law) compression technique improving dynamic range over the linear encoding of audio.The μ -law CODEC dates from 1965, yet is still in common use today.