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Voice Authentication Accuracy (13 Aug 2021)

A Bit of Background#

I get a lot of repeating questions when I try to explain how Voice Authentication works. One of the questions that deserves special treatment is how does the system make a decision on whether the caller's voice passes the test or not? Furthermore, if the caller does not pass the test, what does it actually mean? And what is the Accuracy of Omni Authentication (or any other Voice Biometrics solution for that argument)?

It is a tricky one and it takes quite a bit of effort to explain so I've decided to dedicate a post talking about the inner mechanisms of Voice Biometrics.

In this post we discuss the following Key Points:

  • The mechanics of Voice Authentication
  • Confidence Score
  • Authentication Threshold
  • What Voice Authentication Accuracy is