Is there a way to interact with the microphone attached to a computer (e.g. record the sounds)?
I got your PM, but I really can't help that much. Check out these sites and see what you can get from them:
I don't know if those will help or not, but I really don't know how to do this. Sorry I couldn't help more.
First read this introduction article on java sound for a concrete foundation on java sound
If you want to record sound using java see the below thread
If you want to play back a recorded soung see the below thread
I hope this helps you