If you enable audio filetypes for your forum, (mp3, ogg, wav, m4a) when audio files are uploaded, they should give you the browser’s default audio player.
Audio files are very large, so you would probably only want to enable them if you are storing uploads externally.
Edit: with the m4a filetype enabled, I can upload audio directly from my Android phones voice recorder app. That might be close to what you are looking for.