sound frequency的例句大全

Results The leq ( A) did not exceed about criterion in polystyrene machine, rest room, control room, whereas most sound levels were distributed below 200 Hz by frequency analysis.

结果测量发现聚苯乙烯造粒机、聚乙烯造粒机、休息室。控制室的A计权网络的等效声级均未超过有关的标准，而频谱分析则发现其主要的声强级均分布在200Hz以下。

This device kills off mosquitoes by emitting a sound at a frequency they can hardly bear.

这个灭蚊器以发出蚊子难以忍受频率来杀灭蚊子.

the human ear is incapable of detecting sound waves at this frequency.

人耳无法侦测到该频率的声波。

Digital processing system based on sound card realized the real-time analysis for tonic train signaling, including the time domain analysis and the frequency domin analysis, and realized functions of wavelet analysis and others to the partial misalignment signal.

基于声卡的数字处理系统实现了对音频信号的实时分析，包括时域分析和频域分析，对部分非线性信号实现了小波分析等功能。

the sound wave has a frequency of 24 kilohertz.

声波的频率为24千赫。

Any Bell Labs engineer would be familiar with the idea of reducing the frequency range of speech, since the telephone cut off sound above 4000 Hz.

贝尔实验室的任何一个工程师，对降低声音的频率范围都很熟悉，因为电话会削去4000Hz以上的声音。

The common color television picture intermediate frequency ( PIF) signal with sound intermediate frequency ( SIF) signal are handled in the same passage, and the way of the adoption line alternation scanning to dissolve the big area in picture gleams phenomenon.

普通彩色电视机图像中频信号和伴音中频信号是在同一通道中进行处理的，并采用隔行扫描的方式来消除图像大面积闪烁现象。

Relationship Between Digital Techniques and Audio Frequency Indices, Approaches of Improving Television Sound Quality

数字技术与音频指标的关系及提高伴音质量的思路

Auditory fusion frequency ( AFF) of impulse sound and paired pitch in 80 workers exposed to noise and 60 non exposed ones were measured to study the relationship between AFF and auditory fatigue.

为探讨闪声融合频率与听觉疲劳的关系，测量了80名接触噪声工人和60名非接触噪声人员的脉冲声和双音调闪声融合频率。