Voice-recognition software was recently used in a U.S. prison and was able to figure out a code word used by prisoners while they were on the phone.
According to
New Scientist, all calls to and from prisons are recorded because some inmates conduct illegal business on them. This has resulted in mountains of data, with humans having to listen to the recordings to detect anything illegal.
Using software from London firm Intelligent Voice, a jail in the Midwest was able to detect a phrase used over and over again on several calls: "three-way." Officials figured out the term was a directive by the inmate to patch someone else into the call, because inmates are only allowed to call certain numbers that have been pre-screened.
The technology was able to seamlessly single out the use of the phrase, which showed some inmates were breaking the rules — and potentially the law, depending on what the conversations were about.
Voice-recognition software has become popular in recent years, including Siri on Apple iPhones. Similar products
like Hound, which debuted last year, has users ask it questions about topics ranging from the weather to playing music.
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