Java SE (Java Platform, Standard Edition)

Hi,

I am relatively new to Java, I have only been working with it for two years. Currently I am writing a program for use with a school radio station. It will need to be able to play MP3s and live audio from a microphone. I am going to put the live audio in a play list, and I would like to be able to cut in with the live audio at any time. What would you suggest to help me get started with this project? There are lots of articles and posts I have read about Java and audio, but this is my first Java program that will be using live audio. So far I haven't found anything about how to do this. One of my other concerns is how to make this work all together with threads. Any advice you could offer would be greatly appreciated.

Thanks in advance,
Andy