Solution 7: What To Do If Your Microphone Is Correctly Configured (Bars Were Moving When You’re Talking Into The Mic) But It Still Isn’t Working In Some Program? Solution 1: Adjusting Microphone Settings This guide will cover the most common issues that Mac users encounter and their solutions. They vary depending on the type of mic and the software that you’re trying to use it with. There are a lot of different issues that can cause a microphone to not work properly. Having trouble getting your mic to work on your Mac? This can be frustrating, especially now that COVID-19 makes online calls and video conferences ever more common and often necessary.