Voice quality determination device, voice quality determination method, and voice quality determination program

摘要

PPROBLEM TO BE SOLVED: To provide a device for deciding voice quality which can objectively decide the quality (voice quality) of the voice signal of the utterance made by man. PSOLUTION: A device for deciding voice quality is equipped with a physical parameter analyzing section which finds the physical parameters as the physical features of an inputted voice signal from the voice signal and a voice quality decision section which decides the voice quality of the speech signal, based on the physical parameters. The physical parameters are a spectral tilt, a spectrum excitation, a formant sharpness, harmonic stability, a valley depth attenuation, waveform peak level stability, energy, pitch, etc., and scales for deciding the voice quality are the echo degree, transparency, stability, high-tone tolerance, low-tone tolerance, etc. PCOPYRIGHT: (C)2006,JPO&NCIPI