sound frequency

Sound waves, light waves, and radio waves have a certain frequency, or number of waves per second.

声波、光波或无线电波等都有特定的频率，或者说是每秒的波数。

Obvious evolutions occur both in acoustic waveform and in basic tone frquency of" guai", and it is a vari-toned sound with the dominant basic tone frequency at about 2100 Hz and 2800 Hz.

guái的波形和主音频呈明显的演变，优势主频约2100Hz和2800Hz的变音调声。

Using the sound frequency features extracted a knowledge base for the expert system is created.

依照提取的齿轮制造缺陷的声频特征建立了汽车变速器噪声故障诊断专家系统知识库.

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。

Another haunted and related natural phenomenon is known as frequency infrasonic sound waves.

另一种与闹鬼相关的自然现象是称作次声的低频声波.

Expenses for repairing and maintenance were reduced after the frequency sound wave deashing device was used.

经采用低频声波清灰装置,减少了检修和维护的费用.

FM receiver through demodulation , the frequency signals into sound signals.

调频接收机通过解调, 鉴频将信号转换成声音信号.

The effect of the sampling frequency on the time averaging characteristics of integrating sound level meter

采样频率对积分声级计时间平均特性影响的研究

The optimum loudspeaker arrangement will be decided according to the frequency of reproduced sound signal.

重发时，可根据重发信号频率来确定使系统达到最佳效果的扬声器布置方案。