Real-Time Timbral Transformation: FFT-based Resynthesis

This paper presents real-time musical applications using the IRCAM Signal Processing Workstation which make use of FFT/IFFT-based resynthesis for timbral transformation in a compositional context. An intuitive and straightforward user interface, intended for use by musicians, has been developed by the authors in the Max programming environment. Techniques for filtering, cross-synthesis, noise reduction, and dynamic spectral shaping are presented along with control structures that allow for both fine timbral modification and control of complex sound transformations using few parameters.