Fouriergram — QuietDog
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Fouriergram draws the sound of a track as a disc. Time runs clockwise from 12 o'clock, so one full turn is the whole track.
Each ring is a frequency band, and its line swells when that band gets louder than usual. Silence leaves gaps through the rings.
It opens on Fouriergram_001; load your own audio file (MP3, WAV, AIFF, FLAC) to draw it instead. Press Play and the disc draws itself along with the music. Hover or touch the disc to read the time, frequency and level at any point; click or tap it to jump there.
Start with a preset (1 Waveform, 2 Smoothed, 3 Ink), then shape it with the Look controls. Save the result as a PNG or SVG.
Your audio never leaves your browser.