How to convert WMA to AU
- Add your .WMA file - drop it in the box above or click to browse.
- Convert it to .AU in a few seconds.
- Download your new .AU file.
What to expect
- Converting to a PCM-based AU does not re-compress, but it cannot recover detail already lost by the source WMA; an 8-bit mu-law AU is itself low fidelity.
- Uncompressed AU output can be considerably larger than the source WMA.
- DRM-protected WMA will not convert without its original licence.
Frequently asked questions
What quality results from WMA to AU?
AU commonly stores simple PCM or 8-bit mu-law samples, so the lossy WMA is decoded into an AU stream. If PCM is used the audio is not compressed further, but it can never regain detail the lossy WMA already dropped, and mu-law is itself low-fidelity.
Why convert WMA to AU?
AU is the classic Sun/NeXT Unix system-sound format, so converting suits older Unix-oriented tools or systems that expect the .au/.snd format.
What opens an AU file?
VLC and Audacity open AU on any platform, so the output is easy to play or edit on modern systems.
Does the file get bigger?
If AU is written as uncompressed PCM it can be much larger than the compressed WMA, since WMA stores audio in a compact lossy form while PCM stores raw samples.
Programs that convert WMA: VIP Video Converter · Freemake Video Converter · WavePad · Audacity · Audacity for Mac · Audacity for Linux
