There can be several reasons why the microphone on your Mac is not working. One common issue could be that the microphone is not properly set up or the input volume is set too low. Another possibility is that the microphone itself is not functioning properly or is not compatible with your Mac.
To troubleshoot this issue, you can start by checking the microphone settings on your Mac. To do this, click on the Apple logo in the top-menu bar and select System Preferences from the drop-down menu. In the System Preferences window, click on the Sound tab.
On the Sound tab, make sure that the correct input device is selected for the microphone. You should see a list of available input devices, and you can choose the one you want to use. If you are unsure which device to select, you can try selecting different options one by one and see if any of them work.
Next, check the input volume for the microphone. There should be a slider or a number indicating the input volume level. Make sure that the volume is not set too low, as this can cause the microphone to not pick up any sound. You can try increasing the volume to see if that helps.
If the microphone still does not work after checking the settings, you can try using a different microphone to see if the issue is with the microphone itself. If the new microphone works, then the problem lies with the original microphone and you may need to replace it.
In some cases, the issue may be related to software settings or conflicts. Restarting your Mac can sometimes resolve these types of issues. You can also try resetting the PRAM (Parameter Random Access Memory) and SMC (System Management Controller) on your Mac, as these can sometimes fix hardware-related problems.
If none of the above solutions work, it is possible that there is a hardware issue with your Mac. In this case, it may be best to contact Apple support or take your Mac to an authorized service provider for further assistance.
The microphone on your Mac may not be working due to improper setup, low input volume, a faulty microphone, or software conflicts. By checking the settings, adjusting the volume, trying a different microphone, and troubleshooting software issues, you can hopefully resolve the problem. If all else fails, seeking professional help may be necessary.