How to convert AU to WMA
- Add your .AU file - drop it in the box above or click to browse.
- Convert it to .WMA in a few seconds.
- Download your new .WMA file.
What to expect
- Standard WMA (
wmav2) is lossy - converting from a lossy.ausource produces a second-generation quality loss. - Classic
.aufiles are often 8-bit µ-law at 8 kHz (telephone quality); no conversion step can add fidelity that was not there to begin with. - WMA is a declining format with little support on Apple devices, Android, and streaming services - use MP3 if broad playback compatibility matters.
Frequently asked questions
Will the WMA output sound better than my AU file?
No - if the original AU is 8-bit µ-law, that low fidelity carries through to the WMA. Converting cannot add quality that was never there.
Why does Audacity not export WMA directly?
WMA is a proprietary Microsoft codec excluded from Audacity's standard builds for licensing reasons. Use
ffmpeg or one of the GUI tools listed above instead.Is there a lossless WMA option?
WMA Lossless exists but has very limited player support. For lossless output from a PCM AU source, FLAC or WAV are more practical choices.
Can I batch-convert multiple AU files to WMA?
Yes - tools like Freemake Video Converter support batch conversion through their GUI, and
ffmpeg can be scripted for batch processing on the command line.
