Because normally the electro-acoustic equipment, technical specifications are given quasi-average noise level, rather than quasi-peak noise level, this should be noted.
因为通常电声设备技术指标给出的是噪声准平均值电平,而不是噪声准峰值电平,这一点应加以注意。
But a study that compared the various modes of mass transit in New York City found that the subways topped all other transit types for average noise, at a grinding 80 decibels.
不过一项研究在对比了纽约市的各种大众交通工具后发现,就平均噪音而言,地铁的噪音位居各种交通形式之首,高达80分贝。
Participants understood almost 50 per cent more speech with the intelligent microphone with average background noise.
参与者在中等程度的背景噪音下佩戴该智能扩音器多听懂了差不多50%的言语。
Some babies are very sensitive to noise, and the average home produces a lot of noise!
有些孩子对噪音特别敏感,而一般的家庭都有很多的噪音。
What was found is that when people are exposed to a certain level of noise every day for a certain duration, they're going to have a certain degree of hearing loss on average.
我们发现,当人们长期的暴露在某一特定噪音水平环境中,他们平均都会有一定程度的听力丧失。
About 15 per cent of the 1,400 complaints that the city's pollution control team receives on average each year involve dog noise.
该市的污染防治团队每年平均收到1,400起投诉,其中约15%是关于狗吠噪音。
Conclusion the average equivalent sound level maybe as comprehensive index to evaluate the noise hazard in industrial enterprises.
结论平均等效声级可以作为评价和比较工业企业的噪声危害程度的综合指标。
We want to place our stops farther away from the market than the average level of noise.
我们要把止损放在比平均噪音远的地方。
Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
在频率域内,低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
Obviously, the dynamic threshold is to use quasi-peak level that, while the signal to noise ratio is expressed with the quasi-average levels, and the difference is obvious in.
显见,动态阈是用准峰值电平表示,而信噪比则是用准平均值电平表示的,两者的区别是显而易见的了。
The time domain average method is an efficient method to extract period components from the signal mixed with noise.
时域平均法是从混有噪声的信号中提取周期性分量的最有效方法。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60,且材料的中低频吸声性能优良。
It is shown that the differential conductance, average current and shot noise power are suppressed by the impurities and rough interface scattering.
研究表明,无序层中的杂质散射和粗糙界面散射都能抑制系统的微分电导、平均电流和散粒噪声功率。
Based on moment space theory and Gaussian approximation method, expressions of average error probability for system with multiple-access interference and white Gaussian noise environment are derived.
采用矩空间理论和高斯近似法分别得出该系统在多址干扰和白高斯噪声条件下的平均误码率表达式。
By using the WKBJ method, the average of currents and square of the current are calculated, the results show the existence of the current fluctuation, which causes the noise in the circuits.
运用WKBJ方法计算了电流平均值和电流平方的平均值,计算结果表明电流涨落是存在的,它是介观电路中主要的量子噪声。
The endpoint detection based on short-time average magnitude of speech signals relative autocorrelation sequences can be detected in high accuracy under the low signal-to noise ratio.
在较低信噪比情况下,基于语音信号的短时相对自相关序列的短时平均幅度的端点检测能够获得较高的检测精度。
An efficient approximation for expressions of the average error probability are developed based on considering the effects of multipath interference, multiple access interference and channel noise.
基于多径干扰、多址干扰和信道噪声的机理分析,推导了计算平均差错概率的有效近似公式。
Radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain.
对于射频噪声,通过平均距离频频法和频域陷波的方法可以去掉;
Then the influence on the average power spectrum and bispectrum of specklegrams caused by the photon noise, additive noise and more complex noises of other kinds in the detecting system .
介绍了所用的二维光子计数斑点像探测系统的性能,分析了探测系统的光子噪声、附加噪声和其它更复杂的噪声对斑点图的平均功率谱和重谱的影响。
Conclusion ECG and hearing in workers could be affected with long-term exposure to medium low intensity noise, even if the exposure average level was lower than the limited level of hygienic standard.
结论作业人员长期在平均噪声强度低于卫生标准下工作,仍可有一定程度的心电图改变和听力损失。
In the process of pretreatment, noise lowering and edge sharpening of images is realized with average filtering waves operator to. enhance the image quality.
图像预处理采用平均滤波算子图像去噪、边界锐化以提高图像质量。
UST real time signal process system is called signal extraction system. It can increase signal noise ratio through synchronization and average and limited pulse response filtering.
称为信号析取系统的超声波检验实时信号处理系统,它通过同步平均和有限脉冲响应滤波能够提高信噪比。
The power spectrum of the noise and signal are estimated by the average smooth periodogram method.
用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。
The on-line filter in the same way as average powers can be designed with given program. The power is the filtering factor designed on the basis of noise property.
用该程序可以设计出与加权平均形式相同的在线数字滤波器,所加的权是根据噪声的性质设计的归一化的滤波因子。
Based on the chaotic theory of reconstructing phase space, an improved local average nonlinear noise reduction method is presented.
基于混沌序列重构相空间理论,提出一种改进的局部平均非线性去噪方法。
We find that external noise can destroy the periodicity of the transient current and cancel the long-time average current peaks.
我们发现噪声可以破坏瞬时电流的周期性并削减长时平均电流的峰值。
It obtains low average mean squared error (MSE), fast convergence velocity and decreases the noise sensitivity at the same time.
该方法计算简单、均方误差小、收敛速度快,并且降低了算法对噪声的敏感性。
When dealing with different image noise, its average segmentation rate is as high as 99.71%, which shows the effectiveness of the proposed algorithm.
对于含有高斯噪声和盐椒噪声的图像,平均分割正确率高达99.71%,是一种去噪效果较好的图像分割算法。
Brings forward adaptive noise reduction system based on short time average magnitude, expound its work principle and key technology, at last validate the compose is just through experimentation.
提出基于短时平均幅度比的自适应降噪系统的构想,阐述了系统的工作原理和关键技术,并通过实验对该构想的正确性进行验证。
Brings forward adaptive noise reduction system based on short time average magnitude, expound its work principle and key technology, at last validate the compose is just through experimentation.
提出基于短时平均幅度比的自适应降噪系统的构想,阐述了系统的工作原理和关键技术,并通过实验对该构想的正确性进行验证。
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