cannot hear sound on Mac
Yesterday, in the middle of a Zoom conference, my sound stopped working.
I looked at my sound setting and see iMac Speakers and External Headphones, but no Internal Speakers. I changed the setting to External Headphones and plugged headphones into the computer, but still cannot hear the sound. How can I get the sound to work on my computer?
I am running OS Big Sur (11.2.1) on iMac (Retina 5K, 27-inch, 2020)
iMac 27″, OS X 10.10