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

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

  • regulatory compliance

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

SearchSecurity

  • DNS over HTTPS (DoH)

    DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a ...

  • integrated risk management (IRM)

    Integrated risk management (IRM) is an approach to risk management that uses a set of practices and processes to improve an ...

  • MITRE ATT&CK framework

    The MITRE ATT&CK (pronounced 'miter attack') framework is a free, globally accessible service that provides comprehensive and ...

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification and is used in internally mounted ...

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • virtual memory

    Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer ...

Close