本文对采用减谱法和相关法的语音增强系统进行了研究，系统的噪声为白噪声和普通机房噪声。
In this paper, we have studied several speech enhancement systems that use spectrum subtraction method and Allen's reverberate noise suppression technique.
提出了基于高阶谱的减噪方法，能有效提高回波信号的信噪比，减弱检测噪声对于缺陷散射特征的影响，从而突出缺陷特征信息。
A method for reducing noise based on high-order spectra was presented by which the signal-to-noise ratio (SNR) could be improved significantly and the flaw characteristic information could stand out.
实验表明，算法对于有色噪声干扰下的语音信号有较好的增强效果，并且性能优于改进减谱法。
Simulation results show that this algorithm demonstrates better performance than modified spectrum subtraction algorithm both in thee nvironment of white or colored noise.
为了降低某水下航行装置的辐射噪声，增强其探测目标的能力，对该装置的重要噪声源——传动齿轮箱进行了减振降噪的试验研究。
An investigation was made on the main noise source-the gearbox of the underwater vehicle to reduce the noise and improve its capability of goal-detecting under the water.
讨论强背景噪声下的基于模糊系统的语音增强方法，并与减谱法语音增强算法进行比较。
In this paper the speech enhancement method based on fuzzy system is discussed in strong background noise, and a comparison is made between this method and the spectral subtraction algorithm.
减振钢板的应用是降低汽车噪声的一种手段。
Application of shock absorbing steel sheet is a means for reducing automobile noise.
分析了滚动轴承产生振动和噪声的原因，介绍了减振降噪的的工艺措施。
The reasons of rolling bearing producing vibration and noise were analyzed, the technology measures of reducing vibration and noise were introduced.
发动机的悬置对提高汽车的舒适性和降低噪声起着重要作用，理想的发动机悬置应具有低弹性刚度和高减振功能。
The engine-mounting is very important in improving the comfort and reducing the noise of a vehicle. An ideal engine mounting must have a low elastic stiffness and a high vibration absorbing ability.
通过对汽轮发电机组进行减振改进后，机组的噪声都得到有效的控制。
The noise level of turbogenerator can be effectively controlled after its vibration level is reduced.
减背景操作后，用形态学方法和检测连通域面积进行后处理，消除噪声和背景扰动带来的影响；
After the threshold operation, morphologic operation and connected region area measurement are introduced to solve the background disturbance problem.
处于轨道与道床之间的减振橡胶垫对降低轮轨接触噪声起着重要作用，所以对减振橡胶垫各项性能的研究显得非常重要。
The rubber absorbers between rail and sleeper plays significant role in reducing noise due to the friction between rail and wheel.
对压路机试车场噪声与振动进行分析研究，采取几项措施的综合治理，试车场的减振降噪取得较好的效果。
Through analysis and research on the noise and vibration in the test ground of vibratory road roller, measures have been taken to lower the noise and vibration level and good effect has been resulted.
汽车车身模型风洞实验表明，用内部声激励可获得有效的减阻效果，而且还能起到抑制气动噪声的效果。
A wind tunnel test for a model of the automobile body shows that beneficial effects on reducing drag and suppressing aerodynamic noise by using internal acoustic excitation.
结果表明，减小油管的振动或提高管夹的减振功能可控制振动源对车内噪声的影响。
The results show that reduction of fuel pipe vibration or improving damping function of hose clip can control the effect of source of vibration on interior noise.
振动和噪声不仅危害人的听觉系统，还会加速机械结构的老化，影响设备及仪表的精度和使用寿命，阻尼减振技术是有效控制振动和噪声的方法。
Mechanical vibration and noise not only hurt system of human being but also threaten the precise of instrument, and damping technology is one of the most efficient methods to control them.
根据移频减振降噪原理，借助实验优化设计，分析了振动传递系统的六个刚度对抑制振动噪声传递的主次关系。
The relationship of six stiffness parameters with the restraint of vibration transfer is discussed by means of experiment optimal design.
根据移频减振降噪原理，借助实验优化设计，分析了振动传递系统的六个刚度对抑制振动噪声传递的主次关系。
The relationship of six stiffness parameters with the restraint of vibration transfer is discussed by means of experiment optimal design.
应用推荐