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.
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。
As the charge exerted from input voltage source is dependent on quantization error and input noise voltage to a large extent, the circuit has high signal input impedance.
由于提取自输入电压源的电荷很大程度上仅取决于量化误差与输入噪声电压，所以电路具有高信号输入阻抗。
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