This paper describes our current work to create the apparatus and methodology for scientific and repeatable collection of firearm acoustical properties, including the important direction-dependence of each firearm’s sound field. Gunshot acoustical data is collected for a wide range of firearms using an elevated shooting platform and an elevated spatial array of microphones to allow echo-free directional recordings of each firearm’s muzzle blast. The results of this proposed methodology include a standard procedure for cataloging firearm acoustical characteristics and a database of acoustical signatures as a function of azimuth for a variety of common firearms and types of ammunition.
Maher, Rob; Routh, Tushar
Affiliation: Montana State University, Bozeman, MT, USA
AES Convention: 139 (October 2015) Paper Number: 9471
Publication Date: October 23, 2015
Subject: Forensic Audio
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