Wavve supports mp3, mp4, wav, m4a, flac, and ogg files.
It is recommended that audio files are kept to under 50MB. We will warn you of longer processing times over 75MB, but you can import up to 150MB.
Some mobile browsers have upper limits on memory of 100MB, so your experience may vary. Also, keep in mind that the m4a format is a less reliable format to edit.
You can also convert your files into a compatible format here:
When is support available?
Read this link for support hours: https://support.wavve.co/en/articles/5373873-when-is-support-available-to-help-me