Teams - Microphone not working

Description:

Having issues with the MS Teams Desktop App since the update applied on Mac OS. When in a call, the camera and speakers do work fine, but my microphone doesn't work.

Solution:

1. Open System Preferences.
2. Click on Security & Privacy> Select the Privacy tab.
   
3. Select Microphone on the left bar and verify the Microsoft Teams has permissions：
   
   
   
   
   

If it was already enabled, you can try unchecking it and reboot your Mac, then enable it to see if it can help.

If the problem persists, I would suggest you reinstall Teams and check the results. 

Note: Please back up your data before installing to prevent data loss.