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Convention Paper

Relationship Between Subjective and Objective Evaluation of Distorted Speech Signals

Authors: Mizumachi, Mitsunori

AES Convention 131 · Paper 8481 · October 2011

Abstract

It is important for designing a noise reduction algorithm to evaluate the quality of the noise-reduced speech signals accurately and efficiently. Subjective evaluation is ideal, but requires a time-consuming listening test with a lot of subjects. Then, objective distortion measures are often used for efficient evaluation. However, almost all the distortion measures do not consider the temporal variation of the speech distortion. In this paper, the temporal aspect of the short-term speech distortion is investigated based on higher-order statistics, that is, variance, skewness, and kurtosis. It is interesting that the skewness of the short-term SNR gives a good explanation for the discrepancy between subjective and objective evaluation.

Details

Published in
AES Convention 131
AES Convention
131
Paper number
8481
Publication date
October 6, 2011
Session subject
Posters: Speech
Affiliation
Kyushu Institute of Technology, Fukuoka, Japan (See document for exact affiliation information.)
Type
Convention Paper