---
title: "Text-Independent Voice Biometrics"
url: "https://symnexconsulting.com/glossary/text-independent-voice-biometrics"
date: "2025-04-17"
author: "Matt Smallman"
category: "Glossary"
description: "Text Independent Voice Biometrics is a form of Voice Biometrics that is not dependent on the utterance being used during enrolment being repeated during authentication or identification."
---


# What is Text Independent Voice Biometrics?

**In short:** Text Independent Voice Biometrics is a form of Voice Biometrics that is not dependent on the utterance being used during enrolment being repeated during authentication or identification.

Most often used alongside agent conversations with a Passive Voice Biometrics approach. The biometric algorithm is optimised for how the speaker generally speaks. As a result, it often requires longer utterances for enrolment during registration and authentication/identification to achieve the same level of performance as Text-Dependent Voice Biometrics. The gap is, however, closing as the technology improves. The major advantage is that these utterances can be taken from normal conversations.