Sound Reactive RGB lights, using Python & Arduino
LED strip will be a blue colour when the room is calm, and progressively turn to red as the room gets noisy.
audiovis.py does the heavy DSP and lighting algorithms, while the arduino just updates the LEDs with the R,G,B values
See more about this project on my site! http://jared.geek.nz/2013/feb/sound-reactive-led-lights