Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.
文章根据波动声学的观点对房间内的低频段声场做分析，理论和实验都验证了这个结论。
The ae sensor calibration system based on pulsed surface wave sound field was built several commercial and self-made ae sensors had been calibrated on it.
建立了基于脉冲表面波声场的声发射传感器标定系统，对商用和自制的几种声发射传感器进行了标定。
Sound intensity is the sound wave intensity in sound field, which equals sound energy through the unit area perpendicular to the energy flow direction.
声强就是声场中的声波强度，它等于通过与能流方向垂直的单位面积上的声能量。
According to the NAH theory and propagating characteristics along different directions, sound field separation technique can be established in the wave-number domain.
从近场声全息原理出发，利用声波沿不同方向传播的特点，针对平面、柱面和球面全息测量建立了波数域内的声场分离公式。
The AE sensor calibration system based on pulsed surface wave sound field was built, several commercial and self-made AE sensors had been calibrated on it.
建立了基于脉冲表面波声场的声发射传感器标定系统，对商用和自制的几种声发射传感器进行了标定。
Acoustic wave ash clean-out is a method of using energy of sound field to clean out ash on the surface of materials.
声波清灰是一种利用声场能量的作用，清除物料表面积灰的方法。
The wave form of flame standing wave produced by gas using sound field is studied, it is found that flame appears at wave nodes (fixed reflection end), and hardly appears at wave abdomen.
对通过声场使可燃气体产生火焰驻波的波形进行研究，得出火焰驻波在波节处(固定反射端)出现火焰，在波腹处几乎不出现火焰的结论，理论分析与实验观测相符。
Vector acoustic field is a very important part of sound wave, but the vector information of acoustic wave has been unwitnessed for a long time.
矢量声场时声波场的重要组成部分，但在相当长的一段时间内没有受到重视，声波的矢量信息却被忽略了。
Operation principle of the digital wave filter and application in the field of digital sound result, discuss IIR wave filter, FIR wave filter design method.
数字滤波器的工作原理以及在数字音效领域的应用，讨论IIR滤波器、FIR滤波器的设计方法。
The sound field of the Continuous Wave and the Impulsive Wave is described by the directivity function.
用指向性函数分别描述了医用线列阵单频波和宽带波声场。
The sound field of the Continuous Wave and the Impulsive Wave is described by the directivity function.
用指向性函数分别描述了医用线列阵单频波和宽带波声场。
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