Patent ID: 11862179
Assignee: CAPITAL ONE SERVICES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 7:
8. A method for detecting manipulated vocal audio, the method comprising:
receiving a first vocal sample associated with a user;
transforming the first vocal sample from a wavelength domain into a frequency domain;
determining a first digit frequency distribution of a plurality of amplitudes associated with the transformed first vocal sample;
calculating a divergence between the first digit frequency distribution and a predetermined frequency distribution;
determining whether the first vocal sample is associated with a first predefined risk tier, a second predefined risk tier, or a third predefined risk tier;
determining that the first vocal sample is manipulated when the divergence exceeds a predetermined threshold;
executing one or more first security measures responsive to determining the first vocal sample is manipulated and the first vocal sample is associated with the first predefined risk tier;
executing one or more second security measures responsive to determining the first vocal sample is manipulated and the first vocal sample is associated with the second predefined risk tier; and
executing one or more third security measures responsive to determining the first vocal sample is manipulated and the first vocal sample is associated with the third predefined risk tier.