Definition

voice ID (voice authentication)

Voice ID (sometimes called voice authentication) is a type of user authentication that uses voiceprintbiometrics, voice ID relies on the fact that vocal characteristics, like fingerprints and the patterns of people's irises, are unique for each individual.

The criteria that a voice ID system bases decisions on are created by the shape of the speaker's mouth and throat, rather than more variable conditions. Because of the relative permanence of the characteristics it measures, the technology is not likely to be fooled by an attempt to disguise a voice, and is not generally affected by changes that can make a voice sound quite different to the human ear, such as a bad cold or extreme emotion. During enrollment for a voice authentication system, a user's voice is recorded, creating what is called a voiceprint for comparison with samples taken for user identification. To foil attempts to fool the system with a prerecorded voice sample, people may be asked to read or repeat a list of words which they can then be requested to repeat in random combinations.

Voice ID systems have been used in a variety of security-related applications. The United States judicial system has used the technology, on a limited basis, for about 10 years to ensure that prisoners incarcerated in their homes or out on temporary passes were where they were supposed to be. Voice-based systems could potentially be used effectively in any situation where secure authentication is especially important. Banks and credit card companies are increasingly turning to voice authentication as a means of decreasing the potential for fraud and identity theft and, at the same time, cutting the costs associated with customer verification.

Voice authentication products are available from a number of vendors, including Vocent, Nuance Communications, Courion Corp., and VoiceVault.

This was last updated in September 2005
Posted by: Margaret Rouse

Email Alerts

Register now to receive SearchSecurity.com-related news, tips and more, delivered to your inbox.
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

More News and Tutorials

Do you have something to add to this definition? Let us know.

Send your comments to techterms@whatis.com

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: