Thomas Noll (Germany) studied Mathematics (Diploma) in Jena and Semiotics (PhD) at the TU Berlin. His main research field is mathematical music theory. From 1998 - 2003 he was the leader of an interdisciplinary research group on mathematical and computational music theory. After two years of teaching in Theoretical Informatics at the TU Berlin he works since 2005 as a lecturer in music theory at the Esmuc in Barcelona. He is co-editor of the "Journal of Mathematics and Music".
Fourier-Scratching explores an unsung aspect of the celebrated analogy between sound and rhythm: the core triad in signal processing of timbre and time—(i) analysis of the spectrum, (ii) manipulation, (iii) re-synthesis—is applied to rhythmic loops. Onsets of the discrete time loop are mapped onto a Riemann-Sphere, representing complex numbers whose amplitude and phase encode loudness and sound color. SC + Horde3D equip the "Fourier DJ" to sonify rhythmic loops by "Scratching" their Fourier coefficients.