sound reverberation

Evolutionary spectra of non-stationary underwater sound reverberation process

非平稳水声混响过程的演化谱

In this paper , we discussed the underwater sound reverberation of moving medium , which is a non-stationary stochastic process even after compensating its energy attenuation .

本文讨论了运动介质的水声混响过程，在补偿了能量衰减之后，它仍是一非平稳随机过程。

The test result of interior noise of tractor cab shows that the interior noise in tractor cab is composed of direct sound and reverberation sound .

拖拉机驾驶室内噪声的测试与分析表明：拖拉机驾驶室内声场是由板壁振动辐射噪声形成的直达声场和直达声在壁面间反射形成的混响声场迭加而成。

The plush chairs absorb sound and soften reverberation .

绒面座椅能吸收声音，弱化回声。

According to the characteristics of room sound , the reverberation is divided into early reverb and late diffuse . for separate processing .

根据室内声场的特点，本文把整个混响过程分成前期混响和后期混响分别理行处理。

This thesis discusses distributing and attenuation of sound field in reverberation room by the way of analytical and numerical ( finite element ) method to grounding for solving this problem .

本文就是针对目前存在的问题，用解析法和数值法（有限元法）来探讨混响室内声场的分布和衰减，为进一步解决上述问题打下基础。

Large amount of work has been done on the statistical properties of small signal sound fields in reverberation rooms yielding the theoretical distribution of rms pressure and mean-squared pressure .

对于线性单频混响声场的统计特性的研究人们曾做了许多工作，建立了均方根声压和平均声能密度统计分布理论。

The Validity for Measurement of Sound Absorption in a Reverberation Room

混响室法测量材料吸声系数的有效性

Experimental investigation on sound power emission in reverberation chambers

混响室内声功率发射的实验研究

Computation of sound field in a reverberation room with simple harmonic wave method and the theoretical error of sound intensity measurement

室内声场简正波法的数值计算方法和混响场中声强测量的误差

Since 2004 , some basic data have been gained from the systematically measurement of a number of important national instrument ' sound power level in reverberation room of South China University of Technology .

华南理工大学自2004年开始在混响室内对若干重要的民族乐器的声功率级进行了系统的测试，得到了民族乐器的部分基础声学数据。

It is revealed that acoustic quality is an important consideration in these buildings , and it may vary considerably with the same objective acoustic indices such as sound pressure level and reverberation time .

分析表明了声品质在这类非声学建筑中的重要性，另外，即使客观指标例如声压级和混响时间相同，声舒适度亦可能完全不同。

Evaluation of the sound source power in high intensity sound reverberation chamber

高声强混响室声源声功率的估计

Sound intensity distribution and acoustic power output of a sound source in reverberation chamber

混响室内声源的声功率输出及声强分布

This paper reviews the principles of the Monte Carlo method for simulating the diffuse sound field and presents some results of the diffuse sound field in reverberation room , such as energy density decay function , energy impulse response , mean free path and absorption coefficient .

本文介绍了MonteCarlo方法模拟室内扩散声场的原理，模拟计算了混响室声场中的能量密度衰减曲线、能量脉冲响应、平均自由程及吸声系数等。

This paper introduces a method for reverberation rooms used for measurement of sound power levels of reference sound sources . The uncertainty of results in measurement of sound power level of reference sound sources in the reverberation room is evaluated and analyzed .

本文介绍了混响室法检测标准声源声功率级的方法，并对用混响室法检测标准声源声功率级的测量结果进行了不确定度的评定分析。