Citation

Sato SI, Jeon JY. Huanan Ligong Daxue Xuebao 2007; 35(Suppl): 76-79.

Copyright

(Copyright © 2007, Hua nan li gong da xue xue bao bian ji bu)

DOI

unavailable

PMID

unavailable

Abstract

Since each parameter of the autocorrelation function (ACF) closely relates to the subjective attributes of the sound, it is effective to use the ACF parameters for the source recognition and identification. Gunshot noises are analyzed by the ACF. It is difficult to extract the sound characteristics of the impulsive sound like gunshot which has a broadband spectrum and has no clear spectrum peak, however, the ACF parameters can clarify the characteristics of each gunshot. In 1974, the first lady of the then Korean President was killed by the gunshot during the ceremony in the National Theater. People had recognized that the murderer fired the fatal shot, but recently one professor claimed that the first lady was killed by the miss-shot of her bodyguard by using the traditional acoustical analysis. The authors' ACF analysis provides the fact to reveal which gunshots killed her. Then the car sounds are analyzed by the ACF parameters. Here, the identification process of the car sound by using the ACF is briefly introduced. Moreover, from the movie trailer of the Walt Disney Animation 'Cars', as an example, the authors try to demonstrate how each car engine sound is similar to the sound of corresponding voice actor.