Non-uniform quantization determines the quantization interval according to different intervals of the signal, that is, quantization is related to the size of the signal. There are two methods of non-uniform quantization: analog companding method and direct cost uniform coding and decoding method. Theoretically speaking, the former is simple, but the latter is used more in practice.

The function of compressor is to non-uniformly quantize the pump culture after compression, that is to say, the sampling signal is non-linearly compressed at the transmitting end and then uniformly quantized. Thus, the compressor is characterized in that the slope of the small signal is greater than 1 and the slope of the signal is less than 1. This effect is to improve the quantization signal-to-noise ratio of small signal by reducing the quantization signal-to-noise ratio of large signal, so that the signal is in a dynamic range without increasing the quantization series.

+ 1260△= 1024△+64△*3+44△

1260 > 1024, so it is located in the eighth section, and the section number is11.

The look-up table of code in the segment shows 00 1 1, so the output code is111.

The quantization level is selected in the quantization interval,

So the quantization level is1024 △+64 △ * 3+32 △ =1248 △.

So the quantization error is1260 △-124 △ 8 =12 △.

1260 binary transformation, the answer is? 100 1 1 10 1 100