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Convention Paper

Vibrational Contrast Control for Local Sound Source Rendering on Flat Panel Loudspeakers

Authors: Li, Ziqing; Luo, Pingzhan; Zheng, Chengshi; Li, Xiaodong

AES Convention 145 · Paper 10086 · October 2018

Abstract

A vibrational contrast control method is proposed for two-dimensional audio display on a thin flat panel, which is based on maximizing the contrast of the average kinetic energy of the transverse motion between the radiated zone and the total zone. With the measured mobility matrix from the actuators to the measurement points, the optimal filter for each actuator is obtained based on the solutions of the maximization problem. The proposed method does not need to estimate both the natural frequencies and the modal shapes and therefore is easy to be implemented. Experimental results on an aluminum plate show that the proposed method can achieve high contrast level over a wide frequency range.

Details

Published in
AES Convention 145
AES Convention
145
Paper number
10086
Publication date
October 6, 2018
Session subject
Applications in Audio
Affiliation
Institute of Acoustics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China (See document for exact affiliation information.)
Type
Convention Paper