AES E-Library

Authentication of Forensic Audio Recordings

A detailed description is given of the procedures of the Federal Bureau of Investigation (FBI) to determine whether an investigative or other forensic tape is an original or a duplicate, and whether there have been any alternations to the recording. Information is provided on contributor submitted material, the playback of recordings, an analysis overview, critical listening, physical inspection, magnetic development, instrumental analyses (waveform, narrow-band spectrum, and spectrographic), miscellaneous techniques, examination examples, training of examiners, evidence handling, and testimony.

Author: Koenig, Bruce E.
Affiliation: Federal Bureau of lnvestigation, Engineering Research Facility, Lorton, VA
JAES Volume 38 Issue 1/2 pp. 3-33; February 1990 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes5)   /jrnl8997/1990/8315.pdf