Removing "Microsoft Teams Audio" microphone from Mac

I came across with a werid issue when having FaceTime calls recently.

1. When a FaceTime call is made, people cannot hear my voice.
2. Check the microphone settings in the dropdown of the top menu bar FaceTime icon and turns out it connect to a microphone named “Microsoft Teams Audio” by default every time.
3. I need to switch to use another microphone in order to get my voice back.

There is a discussion thread on Apple Community, such as this one. One of the answer suggests to remove that audio device from Audio MIDI Setup. However, it can’t be removed because the “-” button is grey out. Some users reported this virtual microphone is still there after Teams has been uninstalled.

The solution that works for me is to delete MSTeamsAudioDevice.driver. under /Library/Audio/Plug-Ins/HAL.

1. Go to /Library/Audio/Plug-Ins/HAL (You can do this by open Terminal and type open /Library/Audio/Plug-Ins/HAL)
2. Delete the MSTeamsAudioDevice.driver folder
3. Restart the Mac
4. Check the Audio MIDI Setup again. The “Microsoft Teams Audio” microphone should be gone by now

Reference

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https://www.reddit.com/r/LogicPro/comments/vbkdcn/comment/ihtpo69/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button