Instead it is a mathematical model that resembles the physical characteristics of an individual's voice. The company says these characteristics are as unique as a fingerprint. The enrolling process requires a customer to answer a number of questions and repeat a single phrase several times. The system captures the timing variation from each of the words and phrases, extracting a voice model. During verification, this pattern is then matched to the incoming voice.
Customers can update their voiceprints to allow for changes in their vocal cords as they age.
When Members of Congress run for re-election, more than half of them use the services of a small company called Aristotle International. Its main asset is a database of 150 million registered voters. The company knows your name, address, and political affiliation. Now it wants to sell this data to online marketers. You sit high in comfortable seat, gazing out a big window while the bus cruises past the top sights and a tour guide explains what you are seeing.