In the file of SubbandAnalysis.cxx, the function of SubbandAnalysis::Init()
Now there are 8 subbands, the formula is :
_Mr(i,k) = cos((2*i + 1)*(k-4)*(M_PI/16.0));
_Mi(i,k) = sin((2*i + 1)*(k-4)*(M_PI/16.0));
if increase subbands to 16, does formula change to :
_Mr(i,k) = cos((2*i + 1)*(k-8)*(M_PI/32.0));
_Mi(i,k) = sin((2*i + 1)*(k-8)*(M_PI/32.0));