Timbre-oriented Improvisation System
Timbre-aware Interactive System

Performance excerpts

John Butcher, saxophones and feedback
Bill Hsu, computer

(live in the studio; no overdubs, minimal editing; slight compression before converting to MP3)
  • Excerpt 1 (Steim, Amsterdam, 8/03)
  • Excerpt 2 (Steim, Amsterdam, 8/03)
  • Excerpt 4 (Steim, Amsterdam, 8/03)
  • Excerpt 6 (Steim, Amsterdam, 8/03)
  • Piece 5 excerpt (ZKM, Karlsruhe, 5/06)

    Examples of generating synthetic gestures from acoustic input


  • Acoustic saxophone gesture 1
  • filtered noise from gesture 1
    saxophone roughness mapped to noise tremolo
    saxophone brightness mapped to filter cutoff
  • waveguide bass clarinet from gesture 1
    saxophone roughness mapped to embouchure tremolo

  • Acoustic saxophone gesture 2
  • comb filter with feedback from gesture 2
    saxophone roughness mapped to feedback gain
    saxophone brightness mapped to source noise bandwidth
  • waveguide bass clarinet from gesture 2
    saxophone roughness mapped to embouchure tremolo