Fact · Voice privacy and security
The Nuance Gatekeeper documentation says a voice biometrics system compares spoken utterances with previously enrolled voiceprints, and determines whether they are spoken by the same speaker.
Checked against its source on October 17, 2026
In the source's own words
“The biometrics system compares spoken utterances with previously enrolled voiceprints, and determines whether they are spoken by the same speaker.”
Voice biometrics: how voice biometrics works (Nuance Gatekeeper documentation), Nuance Communications, Gatekeeper documentation, n.d., Fundamentals: how voice biometrics works.
Open the original- What it measures
- Product documentation for Nuance Gatekeeper, a commercial voice biometrics product, read on 2026-10-17. The page describes the general model that its verification features use.
- What it does not show
- Describes one vendor's design, not every voice biometric system. The page does not say how the voiceprint is built or how the match threshold is set.