Calculation of a ‘‘narrowed’’ autocorrelation function

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1989 English Publisher:Acoustical Society of America (ASA)Journal:The Journal of the Acoustical Society of America, volume 85, pages 1,595-1,601 (issn: 0001-4966, eissn: 1520-8524,

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Authors: J C, Brown; M S, Puckette;

doi: 10.1121/1.397363

pmid: 2708677

Calculation of a ‘‘narrowed’’ autocorrelation function

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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 2τ, 3τ, etc., in addition to the usual term with delay τ. 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.

Related Organizations

Massachusetts Institute of Technology
United States

Keywords

Sound Spectrography, Fourier Analysis, Humans, Computer Simulation, Signal Processing, Computer-Assisted, Acoustics, Music

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