Microphone is not picking up any sound, the sound is low or muffled on M1 MacBook Pro/Air, M1 Mac Mini, iMac, especially after macOS Monterey update? Check out the video for some easy ways to fix the microphone not working on M1 Mac (macOS Monterey). 0:00 Common Problems 0:35 Change microphone settings 1:30 Change Audio Midi settings 2:05 disconnect Bluetooth devices 2:36 Allow Microphone Access