Abstract

Voice biometrics specifically was first developed in 1970, and although it has become a sophisticated security tool only in the past few years, it has been seen as a technology with great potential for much longer. Voice biometric has a history dating back some four decades and uses the acoustic features of speech that have been found to differ between individuals. The most significant difference between voice biometrics and other biometrics is that voice biometrics is the only commercial biometrics that process acoustic information. Most other biometrics is image-based. Another important difference is that most commercial voice biometrics systems are designed for use with virtually any standard telephone or on public telephone networks. The ability to work with standard telephone equipment makes it possible to support broad-based deployments of voice biometrics applications in a variety of settings. In contrast, most other biometrics requires proprietary hardware, such as the vendor’s fingerprint sensor or iris-scanning equipment. By definition, voice biometrics is always linked to a particular speaker. The best-known commercialized forms of voice biometrics are Speaker Recognition. Speaker recognition is the computing task of validating a user's claimed identity using characteristics extracted from their voices.