The sound has disappeared in both Camino and Safari. I still have sound in iTunes. I've tried restarting and have checked system prefs, to no avail. Any idea what could be causing this? 
Edit : I kept on searching right after posting this and found the answer- opening Garageband. I'm glad I got my sound back. Thanks EricNau
Here's the link that helped me get my sound back
https://forums.macrumors.com/threads/235034/
Edit : I kept on searching right after posting this and found the answer- opening Garageband. I'm glad I got my sound back. Thanks EricNau
Here's the link that helped me get my sound back
https://forums.macrumors.com/threads/235034/