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

Claim 14:
15. A method for detecting manipulated vocal audio, the method comprising:
receiving a first vocal sample associated with a user;
performing a Fourier transformation of the first vocal sample from a wavelength domain into a frequency domain;
determining a first digit frequency count for a plurality of amplitudes associated with the transformed first vocal sample;
calculating a divergence between the determined first digit frequency count and a Benford's distribution;
determining whether the first vocal sample is associated with at least a first of three predefined risk tiers;
determining that the first vocal sample is manipulated when the divergence exceeds a predetermined threshold; and
executing one or more security measures responsive to determining the first vocal sample is manipulated and the first vocal sample is associated with at least the first of three predefined risk tiers.