Geastrum

n : type genus of Geastraceae; fungi whose outer peridium when

dry splits into starlike segments [syn: {Geastrum}, {genus

Geastrum}]

cepstrum

(Coined in a 1963 paper by Bogert, Healey, and

Tukey) The {Fourier transform} of the log-magnitude spectrum:

fFt(ln( | fFt(window . signal) | ))

This function is used in {speach recognition} and possibly

elsewhere. Note that the outer transform is NOT an inverse

Fourier transform (as reported in many respectable DSP texts).

[What's it for?]

(1997-01-07)