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//clear//
//Caption:A-law companding
//Figure5.13(b)A-law companding, Nonlinear Quantization
//Plotting A-law characteristics for different
//Values of A
clc;
x = 0:0.01:1; //Normalized input
A = [1,2,87.56];//different values of A
for i = 1:length(A)
[Cx(i,:),Xmax(i)] = Alaw(x,A(i));
end
plot2d(x/Xmax(1),Cx(1,:),2)
plot2d(x/Xmax(2),Cx(2,:),4)
plot2d(x/Xmax(3),Cx(3,:),6)
xtitle('Compression Law: A-Law companding','Normalized Input |x|','Normalized Output |c(x)|');
legend(['A =1'],['A=2'],['A=87.56'])
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