Hey people,
and first of all a big thanks to the new 2211!
I tried to upload a few mp3s into the captures folder to play along to.
But within the new audio player they are not listed.
Am I missing some thing?
Is there another tool to play audio files which were uploaded through the web interface?
Have a nice Zynthurday 
Oh, thanks for your help!
But wavs seem to work… so I go with that for now
Wav, ogg and flac are all supported. I will have a look at MP3 support.
As MP3 patent has expired, libsnd now fully supports mp3 decoding, so enabling it for zynthian should be quite easy:
Regards,
You may say that… I spent some time yesterday trying to create deb packages for the lib and dev. Not quite so easy. When we migrate to Bullseye I think it will be sorted but now…
[Edit] …but where there is a will… I have created branch feature/716_mp3_support to zynthian-sys repro which adds mp3 support. I found it too challenging (time consuming) to build working deb packages (the dev package wasn’t working properly) so I just added a binary shared library for the updated libsndfile (and the other changes required to support mp3 - and other audio formats). Also requires zynthian-ui branch bug/782_audioplayer_crash.
How can I play a mp3 file in Zynthian?
FOUND:
New Special Chain > Audio File Player
Yep! You can play MP3, OGG, WAV, FLAC and other formats. You can pitchbend, loop, top & tail, trigger from MIDI, etc.