SOUND QUALITY EVALUATION DEVICE, SOUND QUALITY EVALUATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a sound quality evaluation device capable of precisely estimating an MOS value from a PESQ value even when a piece of data having low sound quality is included.SOLUTION: The sound quality evaluation device corrects a time deviation between a first reference acoustic signal and a first acoustic signal to be evaluated based on signals including the first reference acoustic signal, and subsequently acquires a first PESQ value relevant to the first reference acoustic signal and the first acoustic signal to be evaluated. Based on a linear relationship between a second PESQ value represented by a straight line having a predetermined inclination value and a second MOS value, the first PESQ value for the first reference acoustic signal and the first acoustic signal to be evaluated whose magnitude of time deviation is equal to or less than a predetermined value is subjected to a linear transformation to obtain a first MOS value.SELECTED DRAWING: Figure 14