数字语音压缩的目的是在保证语音一定质量的前提下尽可能降低其编码比特率，提高有限传输带宽的利用率。
Premised on assurance of speech quality, digital speech coding can reduce rate of bits, for the purpose of increasing use of finite bandwidth.
一般认为，在很低比特率场合中解码图像会有一定程度的失真。
It is normal to expect a certain degree of distortion of the decoded images for very tow-bit - rate applications.
一般认为，在很低比特率场合中解码图像会有一定程度的失真。
It is normal to expect a certain degree of distortion of the decoded images for very tow-bit - rate applications.
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