au
What is a .au file?
audio/basic
AU (Sun/NeXT audio) is a simple audio format with a short header followed by sample data, historically using 8-bit mu-law or linear PCM encoding. It is a legacy Unix-world format that is compact and easy to parse. It appears in older systems and Java audio contexts.
How to use a .au file
Use an example AU to test legacy audio decoding, mu-law handling, and converters or players that must support older Unix and Java sound formats.
Download example .au files
- AU — 440 Hz Sine ToneA pure 440 Hz sine tone stored as a Sun/NeXT AU file — big-endian 16-bit PCM, 3 seconds, 44.1 kHz mono. A compact reference for AU decoding and format conversion.
- AU — 1 kHz Sine ToneA pure 1 kHz sine tone stored as a Sun/NeXT AU file — big-endian 16-bit PCM, 3 seconds, 44.1 kHz mono. A compact reference for AU decoding and format conversion.