Home : File Types : AU File (2 File Associations)

.AU File Extension

File Type 1Audacity Audio File

DeveloperAudacity
Popularity
3.2 (6 Votes)
CategoryAudio Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

What is a AU file?

Audio file created by Audacity, a free, cross platform audio editor; uses a proprietary format that can only be opened by Audacity; saved as one of multiple audio data files for an Audacity project (.AUD).

More Information

When you created a project in Audacity and import audio files, the audio data is converted to the AU format and is stored in a folder with the project called myproject_data, where the project name is myproject.aud. When done editing a project, you can export the audio to several standard formats, including .MP3, .WAV, and .M4A.

NOTE: Audacity's AU format is not compatible with the standard AU audio file format.

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Open and view .AU files with File Viewer Plus.
Programs that open AU files
Windows
Audacity
Mac
Audacity
Linux
Audacity
Updated 5/10/2012

File Type 2Audio File

DeveloperN/A
Popularity
2.9 (9 Votes)
CategoryAudio Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

.AU File Association 2

Audio file introduced by Sun Microsystems; used primarily on Sun or other Unix-based machines and has been adopted by several audio programs, including Adobe Audition and QuickTime; stores the data in three parts: a header (24 bytes), a variable length annotation block, and the actual audio data.

Programs that open AU files
Windows
File Viewer Plus
Nullsoft Winamp
Microsoft Windows Media Player
Apple QuickTime Player
RealNetworks RealPlayer Cloud
Adobe Audition CC 2017
VideoLAN VLC media player
Mac
Apple QuickTime Player
RealNetworks RealPlayer Cloud
Adobe Audition CC 2017
VideoLAN VLC media player
Linux
VideoLAN VLC media player
Updated 12/31/2014

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Our goal is to help you understand what a file with a *.au suffix is and how to open it.

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