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Calculation of a "narrowed" autocorrelation function.

J C Brown·M S Puckette
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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 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.

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AcousticsComputer SimulationFourier AnalysisHumansMusicSignal Processing, Computer-AssistedSound SpectrographyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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J C Brown, M S Puckette. 1989. Calculation of a "narrowed" autocorrelation function.. https://doi.org/10.1121/1.397363

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