How do I apply a 5 level wavelet to an audio file?
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I add a wavelet to the example in the link before the stft process. I want to unlock 5 levels. However, I am making such a mistake. How can I solve this?
approx = appcoef(c,5,'bior3.1');
[cd1,cd2,cd3,cd4,cd5] = detcoef(c,l,[1 2 3 4 5]);