Browse Definitions :
Definition

voice authentication

Contributor(s): Matthew Haughn

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

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • California Consumer Privacy Act (CCPA)

    The California Consumer Privacy Act (CCPA) is legislation in the state of California that supports an individual's right to ...

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

SearchSecurity

  • spear phishing

    Spear phishing is an email spoofing attack that targets a specific organization or individual, seeking unauthorized access to ...

  • bridge

    A bridge is a class of network device that’s designed to connect networks at OSI Level 2, which is the data link layer of a ...

  • browser isolation

    Browser isolation is a cybersecurity model for web browsing that can be used to physically separate an internet user’s browsing ...

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

SearchStorage

  • business impact analysis (BIA)

    Business impact analysis (BIA) is a systematic process to determine and evaluate the potential effects of an interruption to ...

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks to ...

  • dedicated cloud

    A dedicated cloud is a single-tenant cloud infrastructure, which essentially acts as an isolated, single-tenant public cloud.

Close