Beat Chunk Reverser V2 reverses audio clips at each beat instead of the whole audio

Beat Chunk Reverser V2

Uses FFT spectral-flux onset detection to find drum hits and musical attacks, slices between them, reverses every slice, and keeps all slices in their original positions.

Choose or drop an audio file MP3, WAV, M4A, or another browser-decodable audio format

Beat sensitivity 1.45×

Minimum beat gap 220 ms

FFT size 1024 samples

Edge crossfade 5 ms

Load an audio file to begin.

Waveform Detected beat boundary

Export is WAV because browsers do not include a reliable built-in MP3 encoder. V2 uses FFT spectral flux rather than simple waveform differences. Percussion-heavy music still works best. Lower sensitivity finds more onsets; higher sensitivity finds fewer.