Convert Sun AU files for free. Choose from 21 output formats, inspect file details and download your results. No account needed.
A simple audio container associated with Sun and Unix systems. An AU header describes the sound encoding, sample rate, and channel count.
Tested output uses signed 16-bit big-endian PCM; AU also has encodings with different playback requirements.
AU file format guideOpen a conversion below or choose the output above. Add up to 100 files and download results separately or in a ZIP.
Choose the sample rate, trim range, and mono or stereo output. Compressed audio formats can discard detail; converting to a lossless format cannot restore sound already lost. Container support depends on the codec inside the file.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.
