Polygraph test is process in which person is tied to device while asked multiple questions. It measures physiological response of body like blood pressure, pulse rate , respiration and etc. It is used to detect lies and catching criminals, but if you are trained, you can easily beat it.
Voice stress analysis is a technique, in which voice is used to detect deception. In this process, person only wears microphone and computer detect the irregular pattern of voice.
Polygraph test is process in which person is tied to device while asked multiple questions. It measures physiological response of body like blood pressure, pulse rate , respiration and etc. It is used to detect lies and catching criminals, but if you are trained, you can easily beat it.
Voice stress analysis is a technique, in which voice is used to detect deception. In this process, person only wears microphone and computer detect the irregular pattern of voice.