METHOD FOR DETERMINING ALCOHOL CONSUMPTION, AND RECORDING MEDIUM AND TERMINAL FOR CARRYING OUT SAME
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Accused Products
Abstract
Disclosed is a method for determining alcohol consumption capable of analyzing alcohol consumption in a time domain by analyzing a formant slope of a voice signal, and a recording medium and a terminal for carrying out same. An terminal for determining whether a person is drunk comprises: a voice input unit for generating a voice frame by receiving a voice signal; a voiced/unvoiced sound analysis unit for determining whether a received voiced frame corresponds to a voiced sound; a formant frequency extraction unit for extracting a plurality of formant frequencies of the voice frame corresponding to the voiced sound; and an alcohol consumption determining unit for calculating a formant slope between the plurality of formant frequencies, and determining the state of alcohol consumption depending on the formant slope, thereby determining whether a person is drunk by analyzing the formant slope of an inputted voice.
28 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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receiving a voice signal from said person and converting the received voice signal into a plurality of voice frames; extracting a voice frame corresponding to a voiced sound among the plurality of voice frames; extracting a plurality of formant frequencies of the voice frame corresponding to the voiced sound; calculating a formant slope between two formant frequencies among the plurality of formant frequencies; and determining whether said person is drunk according to the calculated formant slope. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A terminal for determining whether a person is drunk comprising:
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a voice input unit configured to receive a voice signal from the said person and convert the received voice signal into a plurality of voice frames; a voiced/unvoiced sound analysis unit configured to receive the plurality of voice frames and determine whether each of the plurality of voice frames corresponds to a voiced sound; a formant frequency extraction unit configured to extract a plurality of formant frequencies of the voice frame corresponding to the voiced sound; and an alcohol consumption determination unit configured to calculate formant slopes between the plurality of formant frequencies and determine whether said person is drunk according to the calculated formant slopes. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification