Voice lie detector software for pc4/9/2023 “In our evaluation, voice-stress analysis detected some instances of deception, but its ability to do so was consistently less than chance - you could have gotten better results by flipping a coin,” Sommers said. Sommers, an associate professor of psychology in Arts & Sciences at Washington University in St. “We tested one of the more popular voice-stress lie detection technologies and got dismal results, both in the system’s ability to detect people actually engaged in deception and in its ability to exclude those not attempting to be deceptive,” said Mitchell S. The Truster hand-held “Emotion Reader” is one of many commercial products that claim to detect lies and deception using voice-stress analysis. Now, however, it is being touted as a powerful and effective tool for an array of new applications - everything from the screening of potential terrorists in the nation’s airports to catching wayward spouses in messy marital disputes.ĭespite its booming popularity, a number of federally sponsored studies have found little or no scientific evidence to support the notion that existing voice-stress technologies are capable of consistently detecting lies and deceptions. Voice-stress analysis, an alternative to the polygraph as a method for lie detection, is already widely used in police and insurance fraud investigations.
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