Browse Definitions :
Definition

voice authentication

Voice authentication is a biometric method of speaker recognition based on measuring the distinctions in individual voices to uniquely identify users.

Instead of a password, which might be forgotten or not strong enough to ensure security, voice authentication allows people to use their voices themselves as passwords. Voice authentication can also be used in conjunction with other methods for multifactor authentication.

The technologies behind voice authentication developed in tandem through developments in speech synthesis and speech recognition, two overlapping fields of study. Study of the structures used to produce speech revealed hundreds of measurable characteristics that are distinct in the voices of individuals. In combination, those metrics make up a unique voice print for each user that is harder to fake than a finger print.

There are two methods used in voice authentication: text-based (constrained mode) and text-independent (unconstrained mode). Text-based modes use scripted words which may also be verbal passwords; the words used can be changed. Text-independent modes can use whatever words are spoken to recognize individuals and thus can be used for surreptitious identification. In each method, the recorded audio waveforms are analysed to pick out hundreds of behavioral and physiological individual characteristics.

Gunnar Fant  laid the foundations for voice authentication in the 1960s through his modelling the physiological elements of speech. These works were based on x-rays of individuals making specific phonetic sounds. Dr. Joseph Perkell built on Fant’s work in 1970 with motion x-rays that included movements of the tongue and jaw. The first prototype systems for voice authentication were furnished by Texas Instruments and used by the United States Air Force in 1976.

This was last updated in December 2016

Continue Reading About voice authentication

SearchCompliance

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

SearchSecurity

  • cyber espionage

    Cyber espionage, also called cyber spying, is a form of cyber attack that is carried out against a competitive company or ...

  • virus (computer virus)

    A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and ...

  • honeypot (computing)

    A honeypot is a network-attached system set up as a decoy to lure cyber attackers and detect, deflect and study hacking attempts ...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • dropout

    Dropout refers to data, or noise, that's intentionally dropped from a neural network to improve processing and time to results.

  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

Close