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Voice Risk Analysis or VRA, not to be confused with Voice Stress Analysis (VSA), is a technology used by financial services companies, governments and law enforcement agencies as a lie detection tool. The software, in addition to advanced training in questioning skills, interviewing techniques and behavioral analysis, is marketed by UK based company Digilog. VRA technology works by measuring slight, inaudible fluctuations in the human voice that indicate when a subject is under stress and when that stress is generated by an attempt to deceive. The caller's voice patterns are analysed by the software and thereafter assessed as high or low risk of deception. The fundamental belief in voice risk analysis holds that individuals engaged in lying experience added stress through fear of the lie being discovered. Increased fear of detection and a greater potential reward add to the degree of stress experienced. Aside from other physiological responses, particular increases in voice pitch, frequency and intensity detected by the software are used to assess truth or deception. Marketed to customer contact/call centers across Europe and Latin America by Digilog, voice risk analysis has particular appeal to insurance companies, banks and government agencies involved in processing welfare benefit claims. == Adoption by UK Government & Corporate Clients == * Work and Pensions Secretary John Hutton announces introduction of voice-risk analysis software〔().〕 * From the Guardian Newspaper: ″Tory-controlled Derbyshire Dales said it had taken part in a county-wide review of council tax in 2011 that had used the technology – a contract worth £280,000 to Capita.″〔()〕 * Digilog's website lists corporate clients drawn from the insurance and recruitment sectors.〔http://www.digiloguk.com/testimonials/〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Voice risk analysis」の詳細全文を読む スポンサード リンク
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