Convert AU to WMA
Fast, free AU to WMA conversion — works in any browser
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au
AU format for reliable data storage
| File extension | .au .snd |
|---|---|
| File category | audio |
| Programs | VLC media player Audacity MPlayer Xine Sox |
| Tech description | https://en.wikipedia.org/wiki/Au_file_format |
| MIME type | audio/basic audio/au |
| Developer | Sun Microsystems |
This audio format was developed by Sun Microsystems. It is intended for storing audio files; the file itself consists of three components: the header, the annotation unit, and the audio file itself. What distinguishes this format is the small file size, due to which its sound quality is low. It can be converted into other formats, such as mp3 or MPEG. Although this format is mostly used on personal computers that are powered by operating systems Sun or Unix, AU files can also be opened using other audio players.
wma
WMA — Windows Media Audio
| File extension | .wma |
|---|---|
| File category | audio |
| Programs | Windows Media Player VLC media player Winamp foobar2000 Apple iTunes |
| Tech description | https://en.wikipedia.org/wiki/Windows_Media_Audio |
| MIME type | audio/x-ms-wma |
| Developer | Microsoft Corporation |
WMA (Windows Media Audio) is a proprietary audio codec family developed by Microsoft, first released in 1999 as a competitor to MP3. The WMA format comprises four variants: Standard (lossy, general purpose), Lossless (WMA Lossless, for archiving), Pro (high-resolution multichannel audio), and Voice (optimized for low-bitrate speech). At equivalent bitrates, WMA Standard offers quality comparable to MP3. WMA is natively supported by Windows Media Player and Xbox consoles, and plays on most modern media players including VLC and foobar2000. While its popularity has declined with the rise of AAC and streaming services, WMA files remain common in legacy Windows environments.
FAQ
How to convert WMA to AU?
Upload your WMA file, select AU as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert WMA to AU?
Most WMA files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert WMA files online?
Yes. All uploaded WMA files and converted AU results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert WMA on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the WMA file and convert to AU without installing any app.
