Spectrum analyser

Hi there peeps
does anyoneknow how to make a spectrum analyser thingy, like on <a href=“http://www.electrongeek.net” target="_blank">electron geeks website</a>
its the thingy that jumps up and down to the beat of the music

thanks in advanced :smirk:

Take a look at this thread. =)

http://www.kirupaforum.com/forums/showthread.php?s=&threadid=10619&highlight=flashtrak

oh thanx man, legend =)