My company works with audio recordings of phone conferences. We record those as WAV then convert them to MP3 for storage. The stored MP3 files are the ones users globally can download.
The problem is, that conversion from WAV to MP3 introduces audible artifacts. Whereas the WAV file was quiet, the MP3 file now has background hiss. Sometimes, the MP3 file even muffles audio from lower-pitched speakers. It's bad.
I've read good things about Opus, but I'm not sure how playable it is for everyone. Compatibility is important since we want to avoid issues with users not being to play the audio.
What's a better lossy format than MP3 for speech audio in terms of quality and compatibility?
This question has been asked here before, but it was back in '11. The answer then was still MP3, but I wasn't sure if I can just edit someone else's question from long ago.