Thank you Cory: I have 10.13.6. I notice the sound issue when I am listening to music or talks on ITunes or watching/listening to a news video on Youtube. I hear fine on Facetime or Zoom. I have no other sound applications. I don't know what an SMC or NVRAM reset is. I have done re-start in safe mode several times and Disk Utility First Aid but nothing else.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.