[comp.graphics] wavelets

rick@hanauma.Stanford.EDU (Richard Ottolini) (09/05/90)

Prof. Grossman, one of the founders of the subject, spent this summer at
Stanford's Center for Computer Music.  They were using wavelets as a local
spectral transform to analyse and synthesize music.  The time-varying
envolope of the musical signal is approximately the melody while the
frequency modulation is approximately the instrument and tone.
They weren't using the more recent Fast Wavelet Transforms in the current
literature but the older Gaussian weighted Fourier Transforms.
They plotted something that was a cross between a Witkin-like scale-space
graph and a speech spectrum.
Grossman and companysay to be writing a book on musical applications of
wavelets.