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Conference Paper

The Significance of Tonality Index and Non-linear Psychoacoustics Models for Masking Threshold Estimation

Authors: Kurniawati, Evelyn; Absar, Javed; George, Sapna; Lau, Chiew Tong; Premkumar, Benjamin

AES Conference: 22nd International Conference: Virtual, Synthetic, and Entertainment Audio · Paper 000218 · June 2002

Abstract

This paper presents a method to improve the classical transform based psychoacoustics model to better suit the physiological ear model, which is more accurate in approximating the masking threshold obtained from the psycho acoustical measurement. The linear additivity assumption for simultaneous masking is identified as main reason behind the lower threshold obtained from a classical transform based PAM. Different method to estimate tonality index is investigated and the inclusion of its measure in the nonlinear psychoacoustics model is proposed. Subjective listening test proves that our non-linear PAM performs better than its linear counterparts.

Details

Published in
AES Conference: 22nd International Conference: Virtual, Synthetic, and Entertainment Audio
Paper number
000218
Publication date
June 6, 2002
Session subject
Virtual, Synthetic and Entertainment Audio
Affiliation
Nanyang Technological University, SCE-Parallel Processing Lab., Singapore ; ST Microelectronics Asia Pacific Pte. (See document for exact affiliation information.)
Type
Conference Paper