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Journal Article

Citation

Neale W, Terpstra T. J. Acoust. Soc. Am. 2008; 124(4): 2589.

Affiliation

Kineticorp, 44 Cook St., Ste. 510, Denver, CO 80206.

Copyright

(Copyright © 2008, American Institute of Physics)

DOI

unavailable

PMID

19063482

Abstract

Research by Harber and Harber demonstrates the inaccuracy human beings have when recounting their experience witnessing a vehicle accident. However while witness statements can be unreliable, what a witness might have seen or heard is nonetheless important and cannot simply be disregarded. A witnesss recollection of audible sounds such as tire screeching, vehicle acceleration, or impacts between objects can profoundly affect how an accident sequence is interpreted by experts in vehicular accident reconstruction who may rely on witness statements when there is a dearth of physical evidence that properly defines the sequence of events. This paper provides a means for assessing the validity of what witnesses hear by recreating, recording, and measuring commonly heard accident sounds in real world conditions. Sounds, such as engine noise, tire screeching, and impacts, are recreated using various vehicles and in various environments. These sounds are recorded, observed, and analyzed to provide an understanding of how these sounds might be experienced by a witness. Among some of the testing variables are vehicle speed, roadway temperature, vehicle type, roadway surface, and background environment. These factors are evaluated in how they affect sound quality and clarity, frequency spectrum, sound level, and the sound's reverberation and directivity.


Language: en

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