How to implement the Linear Block Codes ?

Hello,

I have a voice signal which I have quantized and applied Huffman encoding and now I need to implement the Linear block codes. After the huffman encoding I have the index values as a 40000x1 double matrix (which needs to be coded) and this is the code that I use:

symbols = [1:17]; % Distinct symbols that data source can produce
p = prob_y; % Probability distribution
[dict,avglen] = huffmandict(symbols,p); % Create dictionary.
comp = huffmanenco(index,dict);

code = encode(index,n,k,'linear/decimal',genmat); %Linear Block codes

Here I don't really know which values to choose for n and k to calculate genmat(generator matrix).My index matrix has the dimensions of 40000x1 double. I would be glad if you could help on that. Thanks!

[Walter Roberson]

You use "index" without calculating it.

It appears that your index values do not depend on the huffman encoding.

Are you intended to LBC the index values or the huffman-compressed data?

Answer 1

[Ahmed Ayoub]

poly = Cyclpoly(7,4 , 'all');

poly=

1011;

1101;

genpoly = (1101);

[parmat , genmat]=Cyclgen (7 ,genpoly, 'non sys');