Registered MIME type: audio/basic AU audio format. Used for digital audio in computer and telecommunication systems and on the web. Supports a variety of audio codecs, including lossless uncompressed PCM, -law, a-law, and ADPCM voice compression. Sometimes referred to as -law format or Unix Audio Format. The -law algorithm is a standard method for compressing the dynamic range of a signal. AU is an acronym derived from Audio. Binary file format. Supports various sampling frequencies and an arbitrary number of channels. Identical to the SND format. Developed by Sun Microsystems in 1992.
Import and Export support all audio codecs commonly used in the AU format.