Available under Settings > System > Sound, it offers you to configure output device, troubleshoot, control volume, select input device, mic control, and also offers app volume, device preferences ...

Whether you're having issues with the built-in microphone or one connected externally, there can be several reasons for it.

However, it is one of the best video conferencing solutions and like any other online video conferencing app, it requires a microphone and a speaker. However, if the microphone is not working ...