Methods and systems for biometric-based user authentication by voice
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United States of America Patent
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Sep 19, 2017
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Dec 20, 2013
filing date -
Dec 20, 2013
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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.
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