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Filter Bank Example
Here is a sample run of the filter banks:
The first graph is a very small chunk of a wave file. The top graph is the
original signal in the time domain, and the bottom graph is the reconstructed
signal in the time domain. You will notice that the reconstructed signal is
slightly delayed, but there does not seem to be very much disturbance.
Here are the FFTs of the original and recosntructed signals.
Here is the FFT error between the original and reconstructed signals.
Notice that the error is very very small, almost zero. This is because the
perfect reconstruction filter banks we are using do not introduce any
distortion.
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