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If you watched my last tutorial you know how much of pain it was to read audio data in Flash. The old "analyze in AE" method is now a thing of the past. The new SoundMixer.computeSpectrum() method reads audio data at runtime allowing you to create audio-driven animations. Click on the image below to see my first experiment. This only took 10 minutes! Get ready to see some crazy stuff from the Flash community. Source is below as well.