Method and system for detecting sentiment by analyzing human speech
First Claim
1. A method for detecting sentiment of a human based on an analysis of human speech, the method comprising;
- determining, by one or more processors, one or more time instances of glottal closure from a speech signal of the human;
generating, by the one or more processors, a voice source signal based on the determined one or more time instances of glottal closure;
determining, by the one or more processor, a set of relative harmonic strengths based on one or more harmonic contours of the voice source signal, wherein a relative harmonic strength (RHS) is indicative of a deviation of one or more harmonics of the voice source signal from a fundamental frequency of the voice source signal; and
determining, by the one or more processors, a set of feature vectors based on the set of relative harmonic strengths, wherein the set of feature vectors is utilizable to detect the sentiment of the human.
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Abstract
A method and a system for detecting sentiment of a human based on an analysis of human speech are disclosed. In an embodiment, one or more time instances of glottal closure are determined from a speech signal of the human. A voice source signal based on the determined one or more time instances of glottal closure is generated. A set of relative harmonic strengths is determined based on one or more harmonic contours of the voice source signal. The RHS is indicative of a deviation of the one or more harmonics of the voice source signal from a fundamental frequency of the voice source signal. A set of feature vectors is determined based on the RHS. The set of feature vectors are utilizable to detect the sentiment of the human.
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Citations
20 Claims
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1. A method for detecting sentiment of a human based on an analysis of human speech, the method comprising;
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determining, by one or more processors, one or more time instances of glottal closure from a speech signal of the human; generating, by the one or more processors, a voice source signal based on the determined one or more time instances of glottal closure; determining, by the one or more processor, a set of relative harmonic strengths based on one or more harmonic contours of the voice source signal, wherein a relative harmonic strength (RHS) is indicative of a deviation of one or more harmonics of the voice source signal from a fundamental frequency of the voice source signal; and determining, by the one or more processors, a set of feature vectors based on the set of relative harmonic strengths, wherein the set of feature vectors is utilizable to detect the sentiment of the human. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for detecting sentiment of a human based on an analysis of human speech, the system comprising;
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one or more processors configured to; determine one or more time instances of glottal closure from a speech signal of the human; generate a voice source signal based on the determined one or more time instances of glottal closure; determine a set of relative harmonic strengths based on one or more harmonic contours of the voice source signal, wherein a relative harmonic strength (RHS) is indicative of a deviation of one or more harmonics of the voice source signal from a fundamental frequency of the voice source signal; and determine a set of feature vectors based on the set of relative harmonic strengths, wherein the set of feature vectors is utilizable to detect the sentiment of the human. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer-readable storage medium having stored thereon, a set of computer-executable instructions for causing a computer comprising one or more processors to perform steps comprising:
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determining, by one or more processors, one or more time instances of glottal closure from a speech signal of a human; generating, by the one or more processors, a voice source signal based on the determined one or more time instances of glottal closure; determining, by the one or more processor, a relative harmonic strengths based on one or more harmonic contours of the voice source signal, wherein a relative harmonic strength (RHS) is indicative of a deviation of one or more harmonics of the voice source signal from a fundamental frequency of the voice source signal; and determining, by the one or more processors, a set of features vectors based on the set of relative harmonic strengths, wherein the set of features vectors is utilizable to detect sentiment of the human.
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Specification