"The several available applications of the technology work on the same basic principle: that the human voice contains telltale signals that betray a speaker's emotional state, like the intent to deceive. By analyzing small, often inaudible changes in the voice and visually displaying them on a computer screen, the techniques are thought to recognize not only veracity, but also a gamut of emotions ranging from anxiety to arousal," reports The New York Tmes.
"In Britain, a growing number of insurance companies have been using it to screen telephone claims in hopes of rooting out fraud - a goal they say has been borne out, both in fraud detection and in deterrence. One insurer, Admiral, says 25 percent of its car-theft claims have been withdrawn since it began using the system a year ago."
