Crime scene forensic evidence may include audio gunshot recordings obtained from some known or assumed location with respect to the shooting position. The acoustic evidence of the gunshot depends significantly upon the relative orientation of the firearm's barrel and the recording microphone due to the inherent directional characteristics of the gun, the microphone, and the acoustical characteristics of the surrounding environment. This paper describes an experiment involving the directional characteristics of several types of firearms.

Authors: Maher, Robert C.; Shaw, Steven R.
Affiliation: Montana State University, Bozeman, MT, USA
AES Conference: 39th International Conference: Audio Forensics: Practices and Challenges (June 2010)
Paper Number: 4-2
Publication Date: June 17, 2010
Subject: Acoustical Forensics - Gunshots

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