WAVEPACK1 - 1D wavelet packet transform
Function Prototype:
int waveTrans_1(float *x, float *y, waveFilter *filter,
int twopow, int stage, int type);
Input:
x array[] for the signal
y array[] for the wavelet coefficients
filter wavelet filter structure
twopow 2^pow is the length of the signal
stage stage of decomposition
type 0 for decomposition, 1 for reconstruction
Author: Tong Chen, 04/05/95