Adrian Galinski (Daxey) - "Bells" -- Chiptune Visualization / Atari SAP
117*** PLEASE, WATCH IN HIGH QUALITY FOR PROPER AUDIO! ***
So, I decided to take a look at all the separate channels of some chiptune music at once. Thought it might look cool, since those waveforms are usually so pretty. I quickly put together a script to create this and other videos.
This video has a lame naive timbre-capture algorithm: it just finds the first zero-crossing and locks it to the left side of the screen. This way you see waveforms aligned to eachother - at least most of the time. A decent algorithm is trickier than I thought. Until then, have another one. YouTube needs more chiptune anyway.
This track looks rather odd. The beats (seen as high-frequency, short pulses) usually occur in a melody channel, and that channel's tone is played in another channel until the beat's pulse finishes. This is how the music engine used by the artist makes a clever use of the channels, though in this particular case it seemed unnecessary.
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You can find this tune, along with tons of other great Atari music, on the Atari SAP Music Archive (ASMA) at:
http://asma.atari.org/