In the industries of both Law Enforcement and Workplace Insurance, trained VSA™ users who administer voice stress tests are usually able to determine by behavior and visual indication if someone is high on drugs before or during a voice stress detection examination. Question: How can a subject under investigation 'beat' the VSA™?Īnswer: Subjects who have taken narcotics have been known to produce poor test results, causing the VSA™ operator to conduct multiple tests. When an interviewer is able to synchronize the answers of a subject with the system's analytical processor, the results are impressive.

Question: How well does the VSA™ perform?Īnswer: It performs well only if the interviewer has had VSA™ training. The higher the number, the less truthful the response. The VSA™ operator asks a series of questions, establishes a base line for what the system interprets as truthful voice levels as well as false or deceptive voice levels, and assigns a numeric value to the answers of those interviewed. Unlike a polygraph, there are no wires to attach, no graphs to chart. How it works: The Voice Stress Analyzer measures sub-audible micro-tremors in a person's voice. The administrator may also archive all data and evidence whenever accurate lie detection is necessary for future review. In this manner, the administrator may conduct interviews in a more neutral atmosphere, affording an effective way to obtain relaxed interviews. With recorded testing, the administrator would playback the test results and analyze the answers for stress levels. Testing can be done using live or recorded testimony.

This analyzer yields numerical values to indicate truth or deception of the subject. The VSA™ Gen3 enables the user to interview subjects and analyze voice stress levels. When our VSA™ was first introduced in 1979 (VSA™ Mark IX), it was accepted by Law Enforcement users, Insurance and Auditing organizations (Workman's Comp), and private investigators throughout America. Our VSA™ is able to give an advantage over the stress of lie detectors such as the polygraph, a former forensic measurement technology that courtrooms throughout the world regard as questionable. Question: If Lie Detectors are generally not favored by courtrooms, are they still reliable?Īnswer: Our VSA™ is able to provide strong indicators of deception, valid enough to act on at an airport security counter when questioning travelers to determine if they are possible terrorists. VSA™ technology measures the human voice and gives the interviewer an indication if a subject is telling the truth or not.

Lie detection is relied upon by both Law Enforcement and corporate groups, including insurance agencies, risk assessment groups, and other organizations who need quick intelligence if someone is lying. Used for interviews and interrogations, the VSA™ indicates voice stress levels in a person's voice. The VSA™ Gen3 is more than a Lie Detector, operating as a voice stress analyzer.

Voice stress analyzer app