PRONUNCIATION TEST SYSTEM

摘要

According to an embodiment of the present invention, a pronunciation evaluation device is designed to easily evaluate pronunciation of an English voice spoken to be inputted from a phonological aspect and an acoustic aspect of a native English voice. The pronunciation evaluation device comprises: a likelihood ratio measuring module which includes a first null hypothesis calculation unit to calculate a first null hypothesis for an English voice spoken to be inputted, a first alternative hypothesis calculation unit to calculate a first alternative hypothesis corresponding to the first null hypothesis, a second null hypothesis calculation unit to calculate a second null hypothesis for a native English voice set in correspondence to the English voice, and a second alternative hypothesis calculation unit to calculate a second alternative hypothesis corresponding to the second null hypothesis; and a pronunciation scoring module to calculate a pronunciation matching probability value for the English voice in correspondence to the native English voice based on the first and second null hypotheses and the first and second alternative hypotheses.