Title
Sound of guns: digital forensics of gun audio samples meets artificial intelligence
Abstract
Classifying a weapon based on its muzzle blast is a challenging task that has significant applications in various security and military fields. Most of the existing works rely on ad-hoc deployment of spatially diverse microphone sensors to capture multiple replicas of the same gunshot, which enables accurate detection and identification of the acoustic source. However, carefully controlled setups are difficult to obtain in scenarios such as crime scene forensics, making the aforementioned techniques inapplicable and impractical. We introduce a novel technique that requires zero knowledge about the recording setup and is completely agnostic to the relative positions of both the microphone and shooter. Our solution can identify the category, caliber, and model of the gun, reaching over 90% accuracy on a dataset composed of 3655 samples that are extracted from YouTube videos. Our results demonstrate the effectiveness and efficiency of applying Convolutional Neural Network (CNN) in gunshot classification eliminating the need for an ad-hoc setup while significantly improving the classification performance.
Year
DOI
Venue
2022
10.1007/s11042-022-12612-w
Multimedia Tools and Applications
Keywords
DocType
Volume
Multimedia Forensics, AI-driven Forensics, Gun Audio Sample Classification, Convolutional Neural Network
Journal
81
Issue
ISSN
Citations 
21
1380-7501
0
PageRank 
References 
Authors
0.34
5
3
Name
Order
Citations
PageRank
Simone Raponi100.68
Gabriele Oligeri200.34
Isra Mohamed Ali300.34