sound frequency的例句大全

Heart sound recording is decomposed into a series of time-frequency atoms, characterized by amplitude, time, frequency, duration by the modified matching pursuit method.

首先利用改进的匹配追踪算法将含有噪声的心音信号分解为一系列表征为幅度、时间、频率等参数的原子。

Different characteristics of sound field can be extracted by the CSD distribution in different cyclic frequencies, which may be mixed up in the frequency domain of the PSD distribution obtained by the ordinary partial coher-ence method, and not be shown clearly.

因此，与只能得到部分声场功率谱密度分布的传统偏相干方法相比，该方法可更清晰地了解循环平稳声场中各个声源的特性。

The metadata standard which was drawn by the Ministry of Science and Technology and CALIS management center altogether contains 11 kinds of basal resources, but as one important kind of library resource, the compact disc ( non-sound video frequency compact disc) was not contained among them.

在科技部及CALIS管理中心制订的元数据标准中，共包含了11种基础资源，但光盘（非音视频光盘）作为图书馆的一种重要资源，并不包含其中。

FM sound sync-broadcasting has overlapped service zone, the same carrier frequency and the source of the program, which can broadcast in-phase at the same time.

调频同步广播系统是具有重叠服务区，使用同一载频和同一节目源，同时同相位广播的调频发射技术。

The effect of frequency on image localization in the surround sound systems

频率对环绕声声像定位的影响

Using 75 varied low frequency noise samples with adjusted-loudness as sound stimuli, we investigate sound quality for low frequency noise with paired comparison method.

以等响处理后的75个稳态低频噪声样本为例，采用成对比较法，设计并完成了有24位评价者参与的大规模实验室主观评价实验。

Application of the Computer Digital Audio Frequency Sound Origin

计算机数字音频声源的应用

The dependence of USAE in tissue on several important factors, including the choice of difference frequency, tissue absorption of sound, tissue elasticity and focusing performance of the confocal transducer, was discussed.

分析了差频选取、组织声吸收、组织弹性以及共焦换能器聚焦性能等几种重要因素对生物组织声发射的不同影响。

The investigation revealed that the first order of the acoustic modes of air-in filter coincides with the foundation frequency of induction noise, and that the couple in frequency domain makes the sound pressure of left side be higher than right side where exhaust system was settled.

研究发现空滤器声系统的第一阶声固有频率与进气噪声基频相耦合是造成该车辆进气侧通过噪声高于排气侧的重要原因。

Wharfedale's MX Series passive subwoofers are ideal for adding massive low end to the MX Series two-way loudspeakers – or any existing sound system in need of extended low frequency response.

乐富豪的MX系列无源低音炮非常适合加入大量低端的MX系列双向扬声器-或任何现有的扩展低频响应需要健全的制度。

the biological effect of infrasound is determined by frequency, sound pressure level and the time of exposure to infrasound, etc. what is more, it has something to do with the biophysical and biochemical properties of the organism itself.

次声的生物学效应取决于次声的频率、声压级水平、次声作用时间等参数，并与生物体本身的生物物理学、生物化学等特性有关。

Frequency spectrum analysis of sound radiation from a range hood fan is combined with auditory feature for abnormal sound fault diagnosis of a range hood.

对油烟机风机辐射噪声进行频域特征分析、结合人工听觉判断油烟机异音故障。

The contrasting results show that sound intensity, radiation time and frequency are the main factors, and the secondary factors are test temperature, working mode and settlement time.

对比实验研究表明：声强、辐照时间和频率是影响破乳脱水率的主要因素，而实验温度、工作方式、沉降时间等为次要因素。

Now, the traditional passive reduction noise measures in automobile, such as noise elimination, sound absorption, vibration and sound isolation, etc, have good effect on reducing the middle and high frequency noise, but little effect on low frequency.

传统的噪声控制主要采用隔振、隔声、消声、吸声等被动降噪措施，这些降噪方法对降低中高频段噪声作用显著，但对以低频噪声为主的车内噪声控制效果不佳。

Speech is made up of sound waves that vary in frequency and intensity.

语音是由不同频率和强度的声波组成的。

Application of Frequency Microscope in Attached Pneumatic Vibrator with Sound Survey

频率显微镜技术运用于气动附着式振动器声测绘的一种尝试

The result changes accordingly with structure parameters and the sound source frequency varying.

穿孔板各结构参数和声源频率改变，求解的结果亦随之发生相应地变化。

The important factors influenced on engine subjective impressions are loudness, impulsiveness, and frequency characteristics which can be quantified by A-weighted sound pressure level, kurtosis and high frequency level.

结果发现，影响发动机噪声的主观感觉的主要参数为响度特性、脉动性以及频率特性。这些特性可分别用A计权声级、峭度和高频级来加以量化。

The Effect of Sound Wave Frequency on the Human's Auditive System

声波频率对人的听觉系统的影响

The software processing sound can open sound file saved in the form of oscillogram to let users find the number of crest and time of correspondence, and calculate out return interval, stoke interval and the percussive frequency.

声音处理软件以波形图的形式打开被保存的文件，使用户能够读出波峰数及相对应的时间，从而计算出冲、回程时间及频率。