Microphone and Audio Interface!The next pieces of equipment I need are a microphone and a audio interface. A microphone is pretty straight forward; you talk into it and it records what you say. But an audio interface is a little more complex. With every studio mic you need an audio interface. It's basically the glue between your microphone and your computer. The cost for a good quality microphone is about $100 and $199 for an audio interface. Please Donate!