比较均匀量化和A律13折线编码的信号量噪比，通过比较可以看出两者的区别。但不知道正不正确-A law more uniform quantitative and broken line 13 the amount of coded signal to noise ratio, can be seen by comparing the difference between the two. But do not know is not correct

关于PCM的编码程序，通过输入量化电平，给出经过A律13折线压缩的8位二进制码元，已经经过本人翻译。-On the PCM coding process, by entering the quantization level, is given through the law of 13 Line A compressed 8-bit binary code yuan, has been translated himself.