Any significant form of delay, whether delay of all samples or one sample relative to the other, can significantly degrade the quality of the voice signal recreated at the far end of the transmission.
任何重大延误形式，不论所有样品或延误样品相对于其它一、可以大大降低质量的声音信号重现尽头传送。
MethodsAnalyze spectrum of the sample signal and propose the formula of common sample frequency in low speed.
方法分析了带通采样信号的频谱和规律，导出了低速采样频率的选取公式。
The piezoelectric equation is then used to obtain the output signal of the transducer coupled to the sample.
再由压电方程得出与试样直接相耦合的压电换能器的输出信号。
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