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A recording of a sound wave from a single shot from a .308 caliber rifle on the left versus 10 overlapping shots from the same rifle on the right.

Exhibit 2. A recording of a sound wave from a single shot from a .308 caliber rifle on the left versus 10 overlapping shots from the same rifle on the right.
Description

This image is Exhibit 2 from the article The Emerging Field of Firearms Audio Forensics.