Verification of the Impression Feature Calculation Model for Chords by Listening Experiments and Its Extension to Four Tones

Abstract

A computational model for three-note chord(triad)perception called Psychophysical Model of Chord Perception(PMCP)was proposed by Cook and Fujisawa(2006)to quantitatively estimate the listening impression from the acoustic features. We extended this model to four-note chords. In addition, we have validated the results using a listening experiment to evaluate the validity of extending PMCP for triads to four-note chords. The results of factor analysis and correlation analysis on the data obtained from the experiment suggest that the impression of four-note chords are well associated with PMCP, similarly to the cases of triads.