Acoustic field conformation using multichannel active noise control techniques.

被引：1

作者：

de Diego, M ^{[1
]}

Gonzalez, A ^{[1
]}

Pinero, G ^{[1
]}

Garcia, C ^{[1
]}

Ferrer, M ^{[1
]}

机构：

[1] Univ Politecn Valencia, Dept Comunicaciones, Valencia 46022, Spain

来源：

SAM 2000: PROCEEDINGS OF THE 2000 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2000年

关键词：

D O I：

10.1109/SAM.2000.877998

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper describes the experimental application of sensors array and multichannel digital signal processing to the equalization of the acoustic field in car compartments. The aim of this multichannel active noise control system is not simply to cancel undesirable noise but to reshape the sound field around the listener's head. A modified version of the filtered-X LMS active noise equalizer algorithm has been developed and extended to multiple channels. A 4100 type Bruel dummy head and torso with two calibrated microphones at the ear's canals has been used to obtain sound levels in an hypothetic listener's ears. The equalization points are not only the error sensors position bat an area around them which is measured using the manikin. It has been found that at low frequencies the zones of equalization created around the point of control are larger enough to cover the movements of the head without disturbing algorithm 's stability.

引用

页码：202 / 206

页数：5

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