Fact · Voice privacy and security
The Nuance Gatekeeper documentation says text-independent verification uses conversational audio of the speaker, rather than a fixed passphrase.
Checked against its source on October 17, 2026
In the source's own words
“Text-independent verification uses conversational audio of the speaker”
Voice biometrics: how voice biometrics works (Nuance Gatekeeper documentation), Nuance Communications, Gatekeeper documentation, n.d., Fundamentals: biometrics operations table, Verification row.
Open the original- What it measures
- Product documentation for Nuance Gatekeeper, read on 2026-10-17. The same table describes text-dependent verification with a passphrase, so the two modes are set side by side.
- What it does not show
- Describes one vendor's terms. The page does not give accuracy figures, and it says the confidence of a match depends partly on how much speech is captured.