Stop! What’s that sound? Audio forensics in 2020

Rob Maher, professor of electrical and computer engineering in the Norm Asbjornson College of Engineering at Montana State University, will discuss audio forensic analysis which is the scientific acquisition, evaluation and interpretation of audio evidence that is likely to end up in a court of law or some other official venue. Today, many law enforcement officers routinely carry recording equipment while working, including body cameras, memo recorders and dashboard systems in police cruisers. Emergency 9-1-1 call centers have audio recording systems, as do many police dispatching radio systems. Increasingly, audio evidence may include mobile phone recordings made by civilian bystanders or recordings from security surveillance systems in private homes and businesses.

Maher will describe the methods used to assess the authenticity of forensic audio recordings and the techniques applied in several case studies involving audio forensic interpretation and research. For example, can we use audio from a mobile phone video to identify someone making threats of violence? Is the subtle creak heard on an airplane’s cockpit voice recorder a telltale sign of a malfunction in the plane’s airframe resulting in a commercial airline accident? Was a gunshot heard near the boundary of Yellowstone National Park made by a poacher who encroached in the park or by a legal hunter in the forest outside the park?

Register and tune in on June 25th to learn more about this fascinating topic.

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