FREE e-Newsletter
Important News - Hot Topics
Get them Now!

Autonomous Robots Prevent Crime

Ask The Expert

Stacy Dean Stephens

VP Marketing & Sales

ESS Crossbow Photochromic Ballistic Eyeshield - ESS Eyepro
The ESS Crossbow Photochromic eyeshield is created using Transition Optics...

Top News

New System Creates Images of Audiotape Tampering

November 11, 2004  | 

A real-time magnetic imaging system enables criminal investigators to “see” signs of tampering in audiotapes—erasing, overdubbing, and other alterations—while listening to the tapes.

The new system, developed by the Department of Commerce’s National Institute of Standards and Technology (NIST), permits faster screening and more accurate audiotape analysis than currently possible. The Federal Bureau of Investigation will evaluate the system for possible routine use in its criminal investigations.

The new system, much faster than the one currently in use, centers around a special audiotape fitted with 64 magnetic sensors that detect any anomalies as it plays alongside the tape in question in a tape deck. Software is then used to create a 400 dots-per-square-inch (dpi) image displaying points in the tape that have been tampered with.

A second-generation audiotape imaging system is under development, which is expected to provide ultrahigh image resolution of 1,600 dpi. That system will use 256 microscale sensors designed by NIST.

For more information, visit www.nist.gov.

Request more info about this product / service / company


Be the first to comment on this story





POLICE Magazine does not tolerate comments that include profanity, personal attacks or antisocial behavior (such as "spamming" or "trolling"). This and other inappropriate content or material will be removed. We reserve the right to block any user who violates this, including removing all content posted by that user.

Other Recent News

Video: Florida Officers Grant Korean War Vet's Wish to Use Night Vision System Before He Goes Blind
Officers in Pembroke Pines, Florida, answered the call from an 88-year-old Navy veteran...
Suspect Wanted in Shooting of NC Deputy Killed in Standoff
The Caldwell County Sheriff’s Office confirmed Tuesday evening that the suspect, whose...
LAPD: Former NBA Player Killed Self During Standoff with Police
The Los Angeles Police Department says it responded Friday afternoon to a report of a man...

Police Magazine