在多媒体信号处理中，由于量化误差是输入信号的函数，使得语音信号产生信号失真和噪声调制。

In multimedia signal processing, quantization error is a function of input signal and it results in the audible distortion and noise modulation in the audio signals.

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对声频复制来说，所以重要的事情都可以用四个参数来标出：噪音，频率响应，失真，时基误差。

Only four parameters are needed to define everything that matters for audio reproduction: Noise, frequency response, distortion, and time-based errors.

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实验结果表明装置综合误差为0.1级，输出电压失真度小于0.5%，系统运行准确、数据传输可靠、操作方便及功能完善。

The running results show that the error of checking equipment is 0.1 and distortion is less than 0.5%. The system is simple, convenient, reliable in data transfer and accuracy control and so on.

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