US 11,894,000 B2 · Authenticating received speech

Abstract

A speech signal is received by a device comprising first and second transducers, and the first transducer comprises a microphone. A method comprises performing a first voice biometric process on speech contained in a first part of a signal received by the microphone, in order to determine whether the speech is the speech of an enrolled user. A first correlation is determined, between said first part of the signal received by the microphone and a corresponding part of the signal received by the second transducer. A second correlation is determined, between said second part of the signal received by the microphone and the corresponding part of the signal received by the second transducer. It is then determined whether the first correlation and the second correlation satisfy a predetermined condition. If it is determined that the speech contained in the first part of the received signal is the speech of an enrolled user and that the first correlation and the second correlation satisfy the predetermined condition, the received speech signal is authenticated.

Claims20

Dependent claims

A method of authenticating a speech signal received by a device comprising first and second transducers, wherein the first transducer comprises a microphone, the method comprising:

performing a first voice biometric process on speech contained in a first part of a signal received by the microphone, in order to determine whether the speech is the speech of an enrolled user;
determining a first correlation between said first part of the signal received by the microphone and a corresponding part of the signal received by the second transducer;
determining a second correlation between a second part of the signal received by the microphone and the corresponding part of the signal received by the second transducer, said second part different from said first part;
and
determining whether the first correlation and the second correlation satisfy a predetermined condition;
if it is determined that the speech contained in the first part of the received signal is the speech of an enrolled user and that the first correlation and the second correlation satisfy the predetermined condition, authenticating the received speech signal;
and
if it is determined that the speech contained in the first part of the received signal is not the speech of an enrolled user, not authenticating the received speech signal.

5 more elements

Dependencies are inferred from the claim text.

Authenticating received speech

Life of this patent

Authenticating received speech

Life of this patent

Abstract

Claims20