AU File Extension
Audio Format
- File Type au
- Developer Audacity
- Popularity
- Application VLC media player
- Category Audio Files
- Format Binary
What is a AU file?
The AU file extension is linked to Audio Format and belongs to the Audio Files category, which includes 667 files.
With the creation of the Audio Format (AU), Audacity introduced file format along with programs built for their use.
AU files are compatible with various operating systems, including Linux, Windows and Mac OS as well as mobile platforms such as Android. You can play a AU file using one of 11 programs, for example Unix, RealPlayer and VLC media player.
File Signature
HEX code: 2E 73 6E 64 00 00 00. ASCII code: .snd.
Programs that support AU files
How to open a AU file?
The most common reason why a AU file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Unix, RealPlayer and VLC media player are recognized as the most popular software solutions for dealing with AU files. If you wish to install the latest release of VLC media player, visit the official VideoLAN portal and download the edition that works on any operating system.
After setup, the operating system should recognize AU files and link them with VLC media player.
Set VLC media player as your default AU viewer
Setting a default program by file type in Windows
- Start by right-clicking on your AU file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- From the list of applications in the pop-up window, find and select VLC media player as your desired application;
- Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening AU files.
Set default app to open files on Mac
- Right-click or Control + left-click on the desired AU file to open a menu of available actions;
- Select "Open in application" and click "Other";
- Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
- Choose "All Programs" within this menu and locate VLC media player. Check the box next to "Always open in app" to set it as the default program.
Convert to and from AU
If a AU file is cumbersome, converting it to formats such as MP3, WMV, AIFF or other supported types can make it easier to manage.
Converting a AU file may not fully retain all functionality, but it is generally possible to return it to the original format.
Offline conversion tools, like Freemake Video Converter, provide reliable and high-quality conversion of AU files.
Convert AU to other file formats
Converting Files to AU Format
Solving Common AU File Challenges
AU files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.
What are the possible solutions to recover a corrupt AU file?
Use a recovery program to open the damaged AU file and navigate to the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged audio files.
What are the signs that my AU file is damaged?
Corrupted AU audio files may show the following signs:
- The file causes VLC media player or other programs to hang or crash during operation;
- Attempts to open the file result in errors or failed results;
- Unexplained increase in AU file size;
- Working with the file triggers the display of error messages;
What are the possible causes of VLC media player crashing?
VLC media player crashes can be attributed to outdated software. Make sure you have installed the latest updates for VideoLAN products.
A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.