Time domain deconvolution for reproducing sound field in an ordinary room

被引：0

作者：

Peng B. ^{[1
]}

Zheng S.-F. ^{[1
]}

Liao X.-N. ^{[1
]}

Lian X.-M. ^{[1
]}

机构：

[1] State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing

来源：

Zheng, Si-Fa | 1600年 / Chinese Vibration Engineering Society卷 / 35期

关键词：

Deconvolution; Fast convolution; Filter design; Sound field reproduction; Unfree field;

D O I：

10.13465/j.cnki.jvs.2016.04.019

中图分类号：

学科分类号：

摘要：

In order to reproduce a desired sound field in an ordinary room with a reflection boundary, deconvolution of the original sound field signals is neccessary to get loudspeaker driving signals. Here, a time-domain model used for sound field reproduction in a room was established. In the model, a long-time deconvolution network was used to acquire a high accuracy and suppress the time-domain aliasing effect at the same time. Aiming at the massive computations of a convolution filtering process, the fast filtering method was applied to improve the computational efficiency. The reproduction test of the interior noise in an accelerating vehicle indicated that the proposed time-domain model is able to complete the deconvolution of sound pressure signals precisely and efficiently, and then realize the quantificational reproduction of the desired sound field in an ordinary room. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：115 / 120

页数：5

共 14 条

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