~~META:
description abstract = Trigger a pretty display based on the what sounds are comming out of the speakers.
~~

====== Epic Light Show ======

** Abstract: ** Using a basic microcontroller or maybe digital signal processor (DSP), one would program it to run a Fast Fourier Transform (FFT) application on microphone input. User would set thresholds for an array of LEDs (different colours) to switch on and off when a given frequency range at a >= level was reached within a set time. This would then trigger LEDs to match the "mood" or "tone" of the music or audio coming into the micro. Maybe added a smoke machine/firecrackers for better effect? :P 

** Links: **
  * [[http://www.maxim-ic.com/app-notes/index.mvp/id/3722|Developing FFT Applications with Low-Power Microcontrollers]]
  * [[http://en.wikipedia.org/wiki/Digital_signal_processing|Digital Signal Processing]]
  * [[http://en.wikipedia.org/wiki/Digital_signal_processor|Digital Signal Processor]]



** Document TODO: **

   * A lot... more to come!



{{tag>projects fft dsp micro sound music lights software hardware}}