In such cases, we have active sound absorption.
针对一个基于最小均方算法的自适应有源消声控制系统，讨论了自由场空间有源声吸收中误差传声器位置的优化问题，分析了误差传声器位置对消声效果的影响，从理论上给出了一般的优化方法，并发现其误差传声器的最优位置并不是唯一的，同时系统初值的选择是实现最佳效果必须考虑的问题。
in this paper,Active Sound Absorption is theoretically studied.
理论研究了空间有源声吸收问题。
Sub-Seafloor Buried Reflectors Imaged by Low Frequency Active Sonar
通过低频有源声纳进行海底潜伏反射物成像
Examination of Time-Reversal Acoustic Applications to Shallow Water Active Sonar Systems; Master's thesis
浅水有源声纳系统中时间反转声学应用的试验/硕士论文
CAMBS (Command Active Multi-Beam Sonobuoy)
指令控制有源多波束声纳浮标
Research on Multi-channel Adaptive Active Noise Control Systems for Reducing Vehicle Interior Low Frequency Noise;
车内低频噪声多次级声源有源消声系统研究
soundThis is where all of the sound card drivers are.
/sound所有的声卡驱动源码。
Design and Implementation of Signal Source and Signal Acquisition for Imaging Sonar
成像声纳信号源与信号采集系统设计实现
Research on development of simulation platform of ship-borne sonar for multi-source information fusion
面向多源信息融合的舰载声纳仿真平台设计
Cavitation is noisy and easily detected by sonar.
空泡现象是有噪声的并且容易被声纳探测到。
Distributed Sound Source and Its Application in Active Acoustic Structures;
分布式声源及其在有源声学结构中的应用
Optimal strategy for the second source in enclosure under active noise control
封闭空间有源噪声控制次级声源优化策略
bottom side-scan sonar with a parametric profilograph
装有参量剖面测量仪的侧扫海底声纳
side-scan surface sonar with a parametric profilograph
装有参量剖面测量仪的侧扫地表声纳
“Lack of money is the root of all evil” (George Bernard Shaw).
“缺钱是所有罪恶的根源”（乔治·伯纳德·肖）。
Study on Active Noise Control of Structure-borne Sound in Enclosed Space;
封闭空间结构声辐射的有源噪声控制研究
The Extra Insertion Loss of Active Noise Barrier with Multiple-frequency Components;
有源声屏障对宽频带白噪声的新增插入损失
Simulation research on ANC in enclosed sound space
封闭空间声场的有源消声技术仿真研究
Active Noise Control Using Acoustic Holography in Local Free Space
利用声全息方法实现自由场局部有源噪声控制
The Study on Dechlorination of Chlorinated Organic Compounds in Water by Ni/Fe Nanoparticles and with Assistance of Ultrasound;
纳米Ni/Fe及超声辅助纳米Ni/Fe对水中氯代有机物脱氯研究