HOW VOICE STRESS ANALYSIS WORKS
What is Voice Stress Analysis / Detection & How Does It Work?
Voice Stress Analysis or Voice Stress Detection is a procedure used for detection of deception (lie detection) or truth verification.
Voice Stress Analysis / Detection measures “micro-tremors” in your voice using non-invasive (no electrodes attached) voice polygraph technology to produce conclusive results in lie detection and truth verification.
As a person enters a state of stress, the body moves into what is commonly referred to as the “Flight or Fight” mode. Blood flows away from your extremities toward the Central Nervous System (CNS), causing the muscles in your throat to tighten and the basic frequency of your voice to lower, away from the normal 8 – 14 Hertz.
The voice is just the carrier of certain physiological reactions to psychological stimuli. The voice itself is not evaluated and any attempt to control the voice is a waste of time and energy. It simply does not work.
Voice Stress Analysis (VSA) records the psycho-physiological stress responses that are present in the human voice when a person suffers psychological stress in response to a stimulus (e.g., a question), and the consequences of the person's answer may be dire.
