Mac (Mojave) Browser Speaker Failure
My speaker works fine, but sometimes, when I play a video in the browser, there is no sound.
I see the volume is set to max. This is true for Chrome, Safari, and probably other browsers.
I saw the other day, I had that problem but right clicked and saw a menu. I chose "unmute" to make the sound play.
It's as if there is a mute which is not supported by certain web pages.