jean-claude risset's
musical beats

overview:

As I was going through the audio CD accompanying Perry Cook's book, "Music Cognition and Computerized Sound", I came across this sound. The very complicated harmonic beat patterns it exhibits, intrigued me and so I decided to implement it in Matlab. It is easy to understand the algorithm by looking at the source code: risset_beats.m.

examples:

(Note that you can click on each spectrogram for a larger view and on each sub-title to listen to the actual sound.)


risset_beats_100_0.1_7_7_10_8000.wav

risset_beats_20_0.125_100_10_8_8000.wav

risset_beats_200_0.25_10_100_4_4000.wav

risset_beats_50_0.5_10_50_4_4000.wav

risset_beats_16_0.125_300_2_8_4000.wav

risset_beats_50_0.5_50_10_20_400.wav

You can also take a look at Lonce Wyse's implementation in Java here. Drones rule!
 

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