An au file extension is associated with the Unix audio sound file format developed for Unix and Unix-like operating system to store audio data and sounds.

There is one other file type using
the AU file extension!

au file - Audacity audio block file

Detailed description

Software that works with au file extension

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AU file extension - Unix audio sound file format

What is au file? How to open au files?

File type specification:

Mobile ringtone file type icon Mobile ringtone file type

Audio and sound file type icon Audio and sound file type

au file icon: au filetype icon

The au file extension is also related to UNIX-generated sound files. Probably very similar to SND, an interchangeable sound file format that is used on Sun, NeXt, and Silicon Graphics computers. The file typically contains raw sound data that is followed by a text identifier.

AU is a sound file format developed by Sun for the Unix platform for use on the Internet. It is known as the Sparc-audio or u-law format.

The default software associated to au file type:

Unix icon

The Open Group logo Unix  Linux/Unix software

Company or developer:
  The Open Group

Unix is multi-tasking operating system for various platforms. The first version was released in 1969. It is developed by AT&T as well as various commercial vendors, universities and non-profit organizations. Traditional Original Unix systems have characteristics of Version 7 Unix or UNIX System V. Unix Specification have Mac OS X, Mac OS X Server, Solaris, AIX, HP/UX, z/OS etc. Other systems, such as Linux and BSD are called Unix-like or Unix system-like.

Help how to open AU files:

Use compatible media player to playback .au Unix audio files.

How to convert file with extension AU:

It is likely that audio files in AU format can be converted to other multimedia files using a proper conversion software.

Find conversions from au file:

au to aiff

au to mp3

au to wmv

Find converter to au file type:

flac to au

mp3 to au

wma to au

File identification strings:

HEX code: 2E 73 6E 64 00 00 00
ASCII code: .snd

List of software applications associated to the .au file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open au file, edit au file, convert au file, view au file, play au file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the au files.

  • Play au file
  • Convert au file
  • Import au file
  • Others au file

au file players - programs that can play au file - Unix audio sound file format

Click on the link to get more information about listed programs for play au file action.


Main software associated with au file by default:
Unix small icon Unix
Other suggested software:
VLC media player for Linux small icon VLC media player for Linux

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