Error using quantiz The codebook must be a real vector whose length is one more than the length of the partition. How to resolve this issue in the following code attached?

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Anupama V 2022-12-23

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https://ww2.mathworks.cn/matlabcentral/answers/1883757-error-using-quantiz-the-codebook-must-be-a-real-vector-whose-length-is-one-more-than-the-length-of-t

评论： Harismithra selvan 2022-12-24

prj.m

%Quantization
if quantization=='on '
 if psychoacoustic=='off'
 n=8;%default number of bits for each frame - sounds better but uses more bits
 end
 codebook = [min(C):(max(C)-min(C)/2^n):max(C)];
 partition = [min(C):((max(C)-min(C))/2^n):max(C)];
 [index,quant,distor] = quantiz(C,partition,codebook);
%find and correct offset
 offset=0;
 for j=1:1:N
 if C(j)==0
 offset=-quant(j);
 break;
 end
 end
 quant=quant+offset;
 C=quant;
 end
Unrecognized function or variable 'quantization'.