Audio in on Mac mini

Different ways to “input” audio assuming getting voice, sound, TO and not “from” the mac mini. Getting sound to it can be done with internal mic of a webcam, a usb microphone, an external usb or TB audio interface (for higher-end applications such as audio recording).

i could provide you with several options here, but if you can develop what you intend to do, we can be more to the point.