Enable Microphone for Computer
- Click on your Apple menu in the top-left corner and select System Preferences.
- Double-click the Sound option.
- Click on the Input tab to see your microphone list.
- Click on the microphone you want to use. The Internal microphone is typically used in most of the cases if there is no external microphone.
- Adjust Input volume by moving the slider to the right.
Enable Microphone for Zoom
- Click on your Apple menu in the top-left corner and select System Preferences.
- Click on "Security & Privacy."
- While on the "Privacy" tab, scroll down to "Microphone" in the left-hand menu. Make sure that the Zoom App (zoom.us) is selected.