METHOD FOR DETERMINING ALCOHOL CONSUMPTION, AND RECORDING MEDIUM AND TERMINAL FOR CARRYING OUT SAME
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Abstract
Disclosed are a method for determining whether a person is drunk after consuming alcohol capable of analyzing alcohol consumption in a time domain by analyzing a voice, and a recording medium and a terminal for carrying out same. An alcohol consumption-determining terminal comprises: a voice input unit for generating a voice frame by converting an inputted voice signal and outputting the voice frame; a voiced/unvoiced sound analysis unit for determining whether the voice frame inputted through the voice input unit corresponds to a voiced sound, an unvoiced sound, or background noise; a voice frame energy detection unit for extracting the average energy of voice frames which have been determined as a voiced sound by the voiced/unvoiced sound analysis unit; an interval energy detection unit for detecting the average energy of intervals including a plurality of voice frames which have been determined as voiced sounds; and an alcohol consumption determining unit for determining whether a person is drunk after consuming alcohol by extracting a difference value among the average energy of neighboring intervals which have been detected by the interval energy detection unit, thereby determining whether a person is drunk after consuming alcohol by analyzing the voice signal in a time domain.
50 Citations
30 Claims
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1-10. -10. (canceled)
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11. A method for determining whether a person is drunk comprising:
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converting a voice signal received from said person into a plurality of voice frames; extracting a first average energy for each of the voice frames; dividing the plurality of voice frames into sections with a predetermined length; calculating a second average energy for a plurality of voice frames included in each of the sections; and determining whether said person is drunk by computing differences of the second average energy between neighboring sections. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 30)
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20. A terminal for determining whether a person is drunk comprising:
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a voice input unit configured to convert a voice signal received from said person into voice frames and output the voice frames; a voiced/unvoiced sound analysis unit configured to determine whether each of the voice frames corresponds to a voiced sound, an unvoiced sound, or background noise; a voice frame energy detection unit configured to extract a first average energy of a voice frame that is determined as a voiced sound by the voiced/unvoiced sound analysis unit; a section energy detection unit configured to calculate a second average energy for a section in which a plurality of voice frames determined as voiced sounds are included; and an alcohol consumption determination unit configured to determine whether said person is drunk by computing differences of the second average energy between neighboring sections. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification