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AU File Extension

AU file extension is created by Audacity, also known as Audio File. AU has been classified as Audio Files. This file is saved in a binary format, which requires a specific program to read its contents. You can open AU files in Audacity program.



Audio File Type

Audio File Type
Extension .au
Developer Audacity
Popularity 5.0 (4 Votes)
Mime Type audio/basic
Default Program Audacity
Category Audio Files
Format Binary
Updated 12/1/2024

What is a AU File Type?

When you create an Audacity project and import audio files, the audio data is converted to AU and stored in a folder with the project called myproject data, where the name of the project is myproject.aud. After publishing a project, you can export audio to several standard formats, including .MP3, .WAV, and .M4A.NOTE: Audacity & s AU format; is not compatible with the standard AU format.



Free online AU Tools & Apps

We have also the free online .AU (Audio File) file extension apps that can allow to view, edit, convert from to AU, merge, split and compare the AU files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.



AU Files Common Issues

There are few common issues with the Audio File .AU=1264 File Extensions while opening the .AU=1264 files on Windows and MacOs, we have solution to those issues such as:

Can't Open AU Files?

  1. You must have supported software programs installed for Audio File on your system such as Audacity.
  2. Associate default Audacity Audacity program for *.au (Audio File) files.

    Associate AU Default Program on Windows
    1. Right-click a *.AU (e.g example.au) file and click Open With.
    2. In the Open with dialog box, click Audacity Audacity program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .au files.

    Associate AU Default Program on MacOs
    1. Click *.AU (e.g example.au) file and click information -> Open With.
    2. In the programs list, click Audacity Audacity program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .Audacity extension. By clicking Continue you confirm your selection", click Contine to apply changes.


All Platform Software Programs for AU File Extension

List of all softwares that can open the AU files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open AU File on Windows

Software License Developer
ACD Systems ACDSee image. ACD Systems ACDSee 2019 for Windows Commercial ACD Systems
Audacity image. Audacity 2.4 for Windows Open Source Audacity
Adobe Audition image. Adobe Audition CC 2019 for Windows Commercial Adobe
FMJ-Software Awave Studio image. FMJ-Software Awave Studio 10 for Windows Shareware FMJ-Software
Wondershare Filmora image. Wondershare Filmora 9 for Windows Commercial Wondershare
Adobe Flash image. Adobe Flash CC for Windows Commercial Adobe
Foobar2000 image. Foobar2000 1.3.19 for Windows Freeware Foobar2000
Adobe InDesign image. Adobe InDesign 2020 for Windows Commercial Adobe
JRiver Media Center image. JRiver Media Center 19 for Windows Freeware JRiver
NCH Software NCH Switch image. NCH Software NCH Switch 4 for Windows Commercial NCH Software
Audials One image. Audials One 2018 for Windows Commercial Audials
Microsoft PowerPoint image. Microsoft PowerPoint 365 for Windows Commercial Microsoft
Apple QuickTime Player image. Apple QuickTime Player 10 for Windows Freeware Apple
RealNetworks RealPlayer Cloud image. RealNetworks RealPlayer Cloud 16 for Windows Freeware RealNetworks
MAGIX Sound Forge Pro image. MAGIX Sound Forge Pro 13 for Windows Commercial MAGIX
SoX image. SoX 14 for Windows Open Source SoX
Steinberg SpectraLayers Pro image. Steinberg SpectraLayers Pro 6 for Windows Commercial Steinberg
Aiseesoft Video Converter Ultimate image. Aiseesoft Video Converter Ultimate 9 for Windows Commercial Aiseesoft
Xilisoft Video Converter Ultimate image. Xilisoft Video Converter Ultimate 7 for Windows Commercial Xilisoft
Microsoft Visual Studio image. Microsoft Visual Studio 2019 for Windows Commercial Microsoft
Nullsoft Winamp image. Nullsoft Winamp 5 for Windows Freeware Nullsoft
Microsoft Windows Media Player image. Microsoft Windows Media Player 12 for Windows Bundled Microsoft

MacOs logo image - FileProInfo.comOpen AU File on Mac OS

Software License Developer
Audacity image. Audacity 2.4 for MacOs Open Source Audacity
Adobe Audition image. Adobe Audition CC 2019 for MacOs Commercial Adobe
Wondershare Filmora image. Wondershare Filmora 9 for MacOs Commercial Wondershare
Adobe Flash image. Adobe Flash CC for MacOs Commercial Adobe
Adobe InDesign image. Adobe InDesign 2020 for MacOs Commercial Adobe
JRiver Media Center image. JRiver Media Center 19 for MacOs Freeware JRiver
NCH Software NCH Switch image. NCH Software NCH Switch 4 for MacOs Commercial NCH Software
Microsoft PowerPoint image. Microsoft PowerPoint 365 for MacOs Commercial Microsoft
Microsoft PowerPoint for Mac image. Microsoft PowerPoint for Mac 2019 for MacOs Commercial Microsoft
Apple QuickTime Player image. Apple QuickTime Player 10 for MacOs Freeware Apple
RealNetworks RealPlayer Cloud image. RealNetworks RealPlayer Cloud 16 for MacOs Freeware RealNetworks
SoX image. SoX 14 for MacOs Open Source SoX
Steinberg SpectraLayers Pro image. Steinberg SpectraLayers Pro 6 for MacOs Commercial Steinberg
Xilisoft Video Converter Ultimate image. Xilisoft Video Converter Ultimate 7 for MacOs Commercial Xilisoft
Nullsoft Winamp image. Nullsoft Winamp 5 for MacOs Freeware Nullsoft

Linux logo image - FileProInfo.comOpen AU file on Linux

Software License Developer
Audacity image. Audacity 2.4 for Linux Open Source Audacity
SoX image. SoX 14 for Linux Open Source SoX

Website logo image - FileProInfo.comOpen AU file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen AU file on iOS

Software License Developer
RealNetworks RealPlayer Cloud image. RealNetworks RealPlayer Cloud 16 for iOS Freeware RealNetworks

Android logo image - FileProInfo.comOpen AU file on Android

Software License Developer
RealNetworks RealPlayer Cloud image. RealNetworks RealPlayer Cloud 16 for Android Freeware RealNetworks

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

AU file extension icon image.About AU - Audio File

FileProInfo is to help you understand about the Audio File with *.AU suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for AU. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for AU, please let us know.

Updated 12/1/2024


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