Methods and systems for biometric-based user authentication by voice
AssigneeThe MITRE Corporation
InventorsQian Hu, Stelios Melachrinoudis, Joshua Kraunelis, Stanley Boykin, Matthew Coarr
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Abstract
Disclosed herein are system, method, and computer program product embodiments for authentication of users of electronic devices by voice biometrics. An embodiment operates by comparing a power spectrum and/or an amplitude spectrum within a frequency range of an audio signal to a criterion, and determining that the audio signal is one of a live audio signal or a playback audio signal based on the comparison.
Claims24
A computer implemented method for authenticating a user,
- comprising:
- comparing, by a processor of an authentication device, a power spectrum within a frequency range of an input audio signal to a criterion;
- and
- determining, by the processor, that the input audio signal is one of a live audio signal or a playback audio signal based on the comparison, wherein
- if the input audio signal is the live audio signal, performing a text-based voice authentication of the live audio signal for determining access to a device comprising the processor, and
- if the input audio signal is the playback audio signal, prompting a user to provide a second audio signal for further analysis.
A computer implemented method for authenticating a user,
- comprising:
- comparing, by a processor of an authentication device, a power spectrum of an input audio signal having a plurality of frequency ranges to criteria;
- and
- determining, by the processor, that the input audio signal is one of a live audio signal or a playback audio signal based on the comparison,
- if the input audio signal is the live audio signal, performing a text-based voice authentication of the live audio signal for determining access to a device comprising the processor, and
- if the input audio signal is the playback audio signal, prompting a user to provide a second audio signal for further analysis.
A method for determining whether an input audio signal is from a live source or a playback device, comprising:
- comparing, by a processor of an authentication device, an amplitude spectrum within a frequency range of the input audio signal to a criterion;
- and
- determining, by the processor, that the input audio signal is one of a live audio signal or a playback audio signal based on the comparison,
- if the input audio signal is the live audio signal, performing a text-based voice authentication of the live audio signal for determining access to a device comprising the processor, and
- if the input audio signal is the playback audio signal, prompting a user to provide a second audio signal for further analysis.
Dependencies are inferred from the claim text.