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Journal Article

Discrimination of MP3-Compressed Musical Instrument Tones

Authors: Lee, Chung; Horner, Andrew

Journal of the Audio Engineering Society · Volume 58 · Issue 6 · pp. 487–497 · June 2010

Abstract

In order to determine the acceptable compression rate for MP3 codecs, listeners were asked to discriminate various rates for eight different musical instruments. The clarinet proved to be most sensitive to compression even at rates approaching 128 kbps, while the horn was least sensitive at rates of 56 kbps. Discrimination scores were strongly correlated with the signal-to-mask ratio and spectral irregularity. Spectral error accounted for more than 80% of the discrimination variance. Objective measures of the sound source predict most of the discrimination sensitivity.

Details

Publication
Journal of the Audio Engineering Society
Volume
58
Issue
6
Pages
487–497
Publication date
June 6, 2010
Affiliation
Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Kowloon, Hong Kong (See document for exact affiliation information.)
Type
Journal Article