Sound discriminating device, sound discriminating method, and computer program
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United States of America Patent
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Jul 30, 2019
Grant Date -
Oct 12, 2017
app pub date -
Apr 4, 2017
filing date -
Apr 7, 2016
priority date (Note) -
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Abstract
A sound discriminating device capable of correctly discriminating a cry or other given sounds is provided. When a sound is input from a sound input unit, a feature amount extracting unit extracts a differential value between the amplitude of a fundamental frequency of the input sound and the amplitude of the second harmonic of the fundamental frequency as a feature amount of the input sound. A likelihood calculating unit calculates a likelihood between an acoustic model set for which a feature amount is known and the extracted feature amount. A result output unit determines whether or not the input sound is the given sound based on the result of the likelihood calculation.
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