design_de_haan_filter.py does not work well.

[jie-fei]

Use "python design_de_haan_filter.py -M 4 -m 2 -r 1 -w 1.0 -v 1.0" to design filter:
"Solving for synthesis prototype 'g' ... Done.
eps_t = 2.750273
eps_r = -12.536268"
It is not correct, but the analysis filter is correct!

and I print the _E _f _p, they are abnorml.
"0.625415 1.09791e-309 1.09791e-309 0 1.97626e-323 0 0 0"

[kkumatani]

Hi Jie-fei,

The number of subbands is too small (M=4). It won't be able to reconstruct the signal. You will need to increase it at least to 64 for practice.
Those aliasing error terms may not print correct values. I will check them.
Those small values are known. It is supposed to be zero, but it won't be perfectly zero in practice.