What is the Format of Files with the .au File Extension?

What is the .au file extension?

The .au file format is an audio file format from Sun Microsystems. .au files are UNIX-generated audio files. The .au files are uncompressed audio files and by this virtue they tend to occupy large space on a hard disk. Due to this reason, typically, .au sound files are used for storing small sound effects, instead of storing complete songs.

The mime type of .au files is:

  • audio/basic
  • audio/x-basic
  • audio/au
  • audio/x-au
  • audio/x-pn-au
  • audio/rmf
  • audio/x-rmf
  • audio/vnd.qcelp
  • audio/x-gsm
  • audio/snd
  • audio/x-ulaw

Names of the programs that can play .au audio files

If you use Windows, you may use any of the following applications to play .au files:

  • Microsoft Windows Media Player
  • RealPlayer
  • Apple QuickTime
  • Awave Studio
  • Flash Movie Player
  • DSPlayer lite
  • DVD X Player Professional
  • Sony Sound Forge
  • BlazeDVD Professional
  • Blaze DVD Player

If you use a Mac OS, you may use any of the following applications to play an .au file:

  • RealPlayer for MAC
  • Apple QuickTime Player
  • Microsoft Windows Media Player

Question: Is it possible to convert .au audio files to other audio formats, such as the .mp3 audio format?

Answer: Yes, tools are available that allow you to convert .au audio files to other formats.

In case you are unable to play an .au file with your favorite media player on a Windows computer, first check to see if the audio player supports this file format. If it does and still the file is unplayable, chances are high that the file you are trying to play is corrupted. To fix the issue, we recommend that you give FileCure a try. FileCure is a reliable and easy-to-use file extension repair program that boasts a high success rate of fixing corrupt files and/or damaged file openers.