METHOD FOR DETERMINING ALCOHOL CONSUMPTION, AND RECORDING MEDIUM AND TERMINAL FOR CARRYING OUT SAME

摘要

Disclosed are a method for determining alcohol consumption on the basis of a difference among a plurality of formant energies, which are generated by applying linear predictive coding according to a plurality of linear prediction orders, and a recording medium and a terminal for carrying out the method. The alcohol consumption determining terminal comprises: a voice input unit for receiving voice signals and converting same into voice frames and outputting the voice frames; a voiced/unvoiced sound analysis unit for extracting voice frames corresponding to a voiced sound from among the voice frames; an LPC processing unit for calculating a plurality of formant energies by applying linear predictive cording according to the plurality of linear prediction orders to the voice frames corresponding to the voiced sound; and an alcohol consumption determining unit for determining alcohol consumption on the basis of a difference among the plurality of formant energies which have been calculated by the LPC processing unit, thereby determining alcohol consumption depending on a change in the formant energies generated by applying linear predictive coding according to the plurality of linear prediction orders to voice signals.