About the normalization of the input data

[shiyanpei]

Hi ,Thanks for implementing!!!

I am reading your code, and Could you please tell me whether you normalize the input data(waveform) to a certain range(e.g. -1 to 1) or you just use the original data? I did not find any code to normalize it, but from the original wavegan paper, the activation function of last layer of generator is tanh, so I am very curious about that

And if normalized, how do you normalize it? Thank you!