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Proceedings Paper

Content recognition for telephone monitoring
Author(s): Stanley J. Wenndt; David M. Harris; Edward J. Cupples
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Paper Abstract

This research began due to federal inmates abusing their telephone privileges by committing serious offenses such as murder, drug dealing, and fraud. On average, about 1000 calls are made per day at each federal prison with a peak of over 4000. Current monitoring capabilities are very man- intensive and only allow for about 2-3% monitoring of inmate telephone conversations. One of the main deficiencies identified by prison officials is the need to flag phone conversations pertaining to criminal activity. This research looks at two unique voice-processing methods to detect phone conversion pertaining to criminal activity. These two methods are digit string detection and whisper detection.

Paper Details

Date Published: 21 February 2001
PDF: 7 pages
Proc. SPIE 4232, Enabling Technologies for Law Enforcement and Security, (21 February 2001); doi: 10.1117/12.417542
Show Author Affiliations
Stanley J. Wenndt, Air Force Research Lab. (United States)
David M. Harris, ACS Defense, Inc. (United States)
Edward J. Cupples, Research Associates for Defense Conversion, Inc. (United States)


Published in SPIE Proceedings Vol. 4232:
Enabling Technologies for Law Enforcement and Security
Simon K. Bramble; Lenny I. Rudin; Simon K. Bramble; Edward M. Carapezza; Lenny I. Rudin, Editor(s)

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