扬声器
话筒
声学
主动噪声控制
噪音(视频)
消噪麦克风
加速度计
二次源
能量(信号处理)
计算机科学
工程类
物理
麦克风阵列
降噪
人工智能
社会科学
量子力学
社会学
图像(数学)
操作系统
作者
Uli Krause,Delf Sachau
出处
期刊:Conference proceedings of the Society for Experimental Mechanics
日期:2015-01-01
卷期号:: 71-75
被引量:1
标识
DOI:10.1007/978-3-319-15236-3_6
摘要
The test set-up consists of so-called primary loudspeakers simulating the noise source and so-called secondary loudspeakers belonging to the active noise system (ANS). The ANS has two accelerometers and one microphone per secondary speaker. The microphone is located in the near sound field of the secondary loudspeaker. One accelerometer is fixed onto the loudspeaker cone. The other accelerometer is attached to the noise source. The control algorithm contains an adaptive feed-forward scheme for the amplitude of the control signal and an approach to compensate phase deviations. The ANS is tested in a configuration with two primary and two secondary loudspeakers.
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