I am working on a project which involves a pretty simple concept; getting LED's to fade and blink synchronously with music. Overall, I have two options: 1. Hook up a mic to an analog input and simply map the voltage at the source to 0-255. 2. Keep the Arduino hooked up via USB to my desktop and directly read data while the music is playing.
I can't do option 1 as I don't have any background in circuits or any of the parts. Is option 2 in any way possible? How would I make it work? I like to play my music using iTunes, but is there any the data could somehow be sent and received over the USB leading to the Arduino?