Convert CDDA to AU
Fast, free CDDA to AU conversion — works in any browser
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cdda
CD Digital Audio File
| File extension | .cdda |
|---|---|
| File category | audio |
| Programs | Apple iTunes Windows Media Player VLC media player Exact Audio Copy |
| Tech description | https://en.wikipedia.org/wiki/Compact_Disc_Digital_Audio |
| MIME type | audio/x-cdda |
| Developer | Sony, Philips |
A standardized format intended for compact discs. It features a 16-bit amplitude resolution and a 44,100 Hz sampling frequency. This format emerged in 1980. CDDA stores uncompressed PCM audio. You can see such tracks when you extract audio from a compact disc, for example using Apple iTunes.
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.
FAQ
How to convert AU to CDDA?
Upload your AU file, select CDDA 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 AU to CDDA?
Most AU 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 AU files online?
Yes. All uploaded AU files and converted CDDA results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert AU 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 AU file and convert to CDDA without installing any app.
