MacBook Pro 16 Internal Mic Volume not Working
The input volume of the internal microphone of my MacBook Pro 16 has suddenly set itself to zero, and whenever I try to move the slider to a higher level in sound settings, it bounces back all the way to the left. Any USB microphones that I connect to the laptop work well without issues. My theory is that this could be related to having recently enabled dictation, which I understand triggers a driver/software installation that may have gone bad. I know that is not hardware related since dictation works well with the internal microphone when activated (volume set up independently) but not with other applications . I did some troubleshooting such as resetting the PRAM and SMC and creating a new user but none of them worked. I will appreciate any suggestions you may have.
MacBook Pro 16″, macOS 10.15