APPARATUS, SYSTEM AND METHOD FOR CALCULATING PASSPHRASE VARIABILITY

摘要

An apparatus, system and method for calculating passphrase variability are disclosed. The passphrase variability value can then be used for generating phonetically rich passwords in text-dependent speaker recognition systems, or for estimating the variability of the input passphrase in text-independent system during the enrolling process in a speech recognition security system.

主权项

1. A method for calculating passphrase variability in a speech recognition system, the method comprising the steps of:
receiving a passphrase from a user; determining a sequence of predetermined acoustic features using the passphrase; determining a passphrase variability using the acoustic features; comparing the determined passphrase variability with a predetermined threshold; and reporting to the user the result of the comparing step.