How to enable microphone only when external microphone is plugged in?

[KevinR91]

When I unplug my external microphone, the built-in microphone activates. When I go into my sound settings and disable the microphone, it disables both the built-in microphone and the external microphone. Is there a way to set up my sound so that I can only have an external microphone enabled without having the built in one enabled?

Continue reading...