Calculation of a "narrowed" autocorrelation function

Author(s): Puckette, M. S.

Journal/Book: J Acoust Soc Am. 1989; 85: 1595-601.

Abstract: A method of calculating an autocorrelation function with extremely narrow peaks is described. This is done by including terms in the autocorrelation expression corresponding to delays at 2 tau, 3 tau, etc., in addition to the usual term with delay tau. Implications in the frequency domain are explored. Graphs of this autocorrelation function for a number of violin sound samples, including a two-octave scale, vibrato, and glissando, are presented. Graphs of the autocorrelation function for some synthetic sound samples are also included.

Keyword(s): Acoustics ; Computer Simulation; Fourier Analysis; Signal Processing, Computer Assisted Music ; Sound Spectrography methods Human; Support, Non U.S. Gov't; Support, U.S. Gov't, P.H.S.

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