OBJECTIVE SPEECH QUALITY MEASURE METHOD HIGHLY CORRELATED TO SUBJECTIVE SPEECH QUALITY

摘要

PURPOSE: A method for measuring an object speech quality is provided to extract a speech measure rule capable of relatively exactly estimating a subject speech quality under various noise environments and when a channel is damaged and to measure an object speech quality using the extracted object speech quality rule. CONSTITUTION: A method for measuring an object speech quality performs a global scaling(212). The time region data is changed into a frequency region and a frequency warping is performed(216). A local scaling is performed using the pitch power energy inclination(217), the intensity warping of speed is performed(218) and the size scaling of speech is performed using the pitch power energy inclination(219). After finding a noise disturbance intensity(220), an asymmetric process is performed using the pitch power energy inclination of an original speech(221) and a distorted speed and the global scaling factor and a mute distance weight is performed(222) to measure the speed quality(223).