Supercollider code for real time sound transformations for the music comoposition and stage work Catexis. This code develops interactively and in real time a sound transformation procedure invented by Trevor Wishart which he calls sound shredding. In this instrument the vocal sounds originally produced by the dancer are triggered with her sudden (thrust) movements and travel along an octophonic loudspeaker array. At each movement of the dancer this vocal multiplex is cut at a number of random positions in the file. The resultant segments are reassembled together in a new sound file which is cut again and again every time the dancer produces a violent movement. When this process is repeated a number of times the original sound is reduced to tiny fragments (shreds) that are perceived as a water texture. At this point the quality of the dancer’s movement changes into a floating quality and it is correlated with the amplitude of the resulting texture.




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