How to Solve Mic Problems on a Mac (5 Steps)

Restart your computer. Click the Apple menu icon at the top of the desktop and then click 'Restart' from the pull-down menu. Click 'Restart' in the dialog box to confirm the computer's reboot. A computer restart forces all open applications to shut down, which releases an application's use of the microphone.
Check your computer's volume settings once the computer has restarted. Click the Apple menu icon and click 'System Preferences' to access your computer's system manager. Click 'Sound' and make sure 'Internal microphone' is displayed in the device section. Drag the slider on the microphone tab to the right to increase the microphone input volume. Make sure the checkbox next to the mute option is unchecked.
Remove all external audio attachments and close all open applications. Hold and press 'Command' and 'Q' on your keyboard to exit each application. If the application is unresponsive when attempting to quit, click the Apple menu icon, click 'Force Quit' and then click the name of the application in the window. Click 'Force Quit' to confirm the action and then restart the application to test the microphone.
Update your sound drivers. Click 'Software Update' from the Apple menu on your desktop and then click the checkbox next to any operating system or driver updates. Click 'Install Item' and enter your administrator password. Click 'OK' to install the update and restart the computer.
Re-assign your microphone settings. Click 'System Preferences' from the Apple menu on the desktop and then click 'Sound.' Click the 'Input' tab in the 'Sound' window and then insert an external microphone's adapter into the headphones port on your Macintosh computer. Click 'Line In' in the sound input window to select the connected microphone as the new default device.
VPS Hosting