In the video I am using an Arduino to read the values from a modified pair of headphones and display it using a LED with PWM (Pulse Width Modulation). I apologize for the poor video quality, I only had my webcam available. While the video shows the LED reacting to audio, it is much faster in person. Also, the light from the LED got a little blown out as it got brighter, which doesn't happen in person. Again this is just a test model. I'll upload more videos later.
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