Nixie Music Visualizer

A hypnotizing music visualizer inspired by those little bars in the top of iTunes. Fourteen Russian IN13 Nixie bargraph tubes are used as the display. The three tests are a short test sweep from 200Hz to 12kHz, The Day I Turned To Glass by Honeycut, and You re Supposed To Be My Friend by 1990s. Each bar shows the volume of a certain frequency band, with low frequencies on the outside, and high frequencies on the inside. The left and right half show the left and right channels of the music.