I installed Pot Player using Wine in Elementary OS 0.4 Loki, it didn't work so I uninstalled it. The icon was still in the applications list, so I removed Wine thinking that it might help, I followed this forum. After that I could hear no sound, no sound at all, no sound in vlc, videos and other players and no notification sounds at all. I can't even hear any sound in sound test, even in bluetooth speakers or headphones. How to get it back? I'm running Elementary OS Loki.
Step 4 of this doc at https://help.ubuntu.com/community/SoundTroubleshootingProcedure includes installation and starting pavucontrol and helped me restore sound on a Dell Lattitude laptop. I had system sounds like trash and test front left/ front right but Noise Music player and videos on the browser did not have audio.