The formal procedures for the scientific authentication of audio media in investigative matters and legal proceedings have been updated as a result of the widespread conversion from analog to digital technology since the 1990s. Topics discussed include recommendations regarding handling examination requests, laboratory space and technical equipment, digital authenticity protocols, evidence handling, and expert testimony. Additionally, four case studies illustrate how this formal process has been applied to real-world examples.
This article is available for purchase from the Audio Engineering Society: http://www.aes.org/e-lib/browse.cfm?elib=14836
Bruce E. Koenig is the senior examiner and owner of BEK TEK LLC. He has been involved in the Forensic Analysis of Audio and Video Recordings on a full-time basis since 1974. Mr. Koenig & his associates conduct forensic examinations of audio and video media (analog and digital) to authenticate recordings, improve intelligibility, identify/classify voice and non-voice signals, and compare voice samples.
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