Could it be that the wav format (32bit-float) is different on linux and windows? Somebody told me that windows wav file are LSB  and linux and Mac are MSB.

But I could not believe that really, and I couldn't find anything about it in the internet.

If somebody is interested in my distorted wav file, you can download it from my dropbox:
https://www.dropbox.com/sh/gnp6zfm94a5z1ub/N4SwsWb1ha

 

thanks

Chris