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Convention Paper

21-Channel Surround System Based on Physical Reconstruction of a Three Dimensional Target Sound Field

Authors: Seo, Jeongil; Yoo, Jae-hyoun; Kang, Kyeongok; Fazi, Filippo M.

AES Convention 128 · Paper 7973 · May 2010

Abstract

This paper presents the 21-channel sound field reconstruction system based on the physical reconstruction of a three dimensional target sound field over the pre-defined control volume. According to the virtual sound source position and intensity, each loudspeaker signal is estimated through convolving with appropriate FIR filter to reconstruct a target sound field. In addition, the gain of FIR filter is only applied to the mid frequency band of a sound source signal to prevent aliasing effects and to save the computational complexity at the high frequency bands. Also the whole filter processing is carried out at the frequency domain to adopt a real-time application. Through the subjective listening tests the proposed system showed better performance on the localization in the horizontal plane comparing with conventional panning method.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
7973
Publication date
May 6, 2010
Session subject
Recording, Production, and Reproduction—Multichannel and Spatial Audio
Affiliation
ETRI, Daejeon, Korea; University of Southampton, Southampton, UK (See document for exact affiliation information.)
Type
Convention Paper