Jürgen Reuter: Considering Transient Effect in Spectrum Analysis

Signal processing with discrete Fourier transform (DFT) works well in standard settings, but is unsatisfying for rapid changes in signal spectra. We illustrate and analyze this phenomenon, develop a novel transform and prove its close relation to the Laplace transform. We deploy our transform for deriving a replacement for the sliding window DFT. Our approach features transient effect and hence shows more natural response to rapid spectral changes.

Photo of Juergen Reuter

Paper: PDF
Slides: TransientEffects.pdf
Video Recording: See http://lad.linuxaudio.org/events/2009_cdm/videos/
Homepage: http://www.soundpaint.org