live music visualisation Does anyone out there know of any software for developing real time visualisations and analysis of real time sound, say using a mike? I've found a few but none allow the user to build up their own visualisations.

Thanks for any ideas, Jonathan
One tool I've seen people use for this sort of thing is Processing, a Java-based language for real-time artsy stuff that supports graphics and audio. I haven't ever worked with it myself, but apparently it's pretty easy to use it for programming visualizations. Here's an example of a simple visualization someone made; look in the video description for a link to their code&mdash;it's quite short. Their example loads an mp3 file, but Processing also supports real-time input from a mic.