Using voice recognition software is easy, although the verification takes longer than facial recognition. When authenticating, the system randomly asks for one or more of these five pieces of information. We found the system to be a little finicky at times, and background noise did affect performance. In general, though, the system is easy to use and authentication is fast. Users, however, must take care to speak clearly and in the same manner they spoke when enrolling.
Administrators can adjust several parameters for voice verification.
There is a threshold setting. The administrator also sets the minimum number of valid inputs required, which ranges from one to five and determines the number of questions the user must answer to gain access.