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Study on PESQ Algorithm Based on the Auditory Model

Author: LiZuo
Tutor: ShangQiuFeng；HuZhiQi
School: North China Electric Power University (Hebei)
Course: Communication and Information System
Keywords: speech quality objective assessment methods perceptual-model correlation coefficient
CLC: TN912.3
Type: Master's thesis
Year: 2009
Downloads: 209
Quote: 4
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Abstract


In this paper, the classification and performance of the objective methods were introduced in detail and the PESQ in ITU-T P.862 Recommendation was proposed. And this paper presented the structural drawing of the algorithm and gave the simulation of Perceptually-Based Features for Objective Speech Quality Evaluation. The Intermediate Reference System (IRS) filter was replaced by a band-pass filter to simplify calculation. And weights over speech frames in disturbance integration procedure were reallocated to simulate the mask effect of human hearing. Finally, the simulation-results of PESQ were given. And the correlation-coefficient of PESQ and subjective scores were calculated. The experiment results show that much time complexity can be degraded from P.862 with only a little decrease in average correlation to listener opinions. And by comparing PESQ with GQI, the good performance of PESQ was verified.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Electro-acoustic technology and speech signal processing > Speech Signal Processing
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