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Convention Paper

Wavelet Based Multiple Point Equalization of Room Transfer Function

Authors: Jeon, Jae-Jin; Kim, Lae-Hoon; Sung, Koeng-Mo

AES Convention 115 · Paper 5858 · October 2003

Abstract

Multiple Point Equalization scheme based on least square(LS) method for wavelet-filtered signal is proposed. As the variations of the room transfer function (RTF) are different at different frequency bins depending on wavelength of frequencies, equalization with different frequency resolution is desirable. Decomposing received signal with discrete wavelet transform, we can assign different kinds of filters to each bandpass signal. Moreover, RTF measurements at various receiver positions should be utilized to make the inverse filter insensitive to source/receiver position changes. These two methods are well combined to guarantee wider sweet region in a listening room. Real measurement data are used to construct an inverse filter.

Details

Published in
AES Convention 115
AES Convention
115
Paper number
5858
Publication date
October 6, 2003
Session subject
Acoustics and Sound Reproduction
Affiliation
Seoul National University, Seoul, Republic of Korea (See document for exact affiliation information.)
Type
Convention Paper