That’s not going to work. Instructions how to attach images to a post are described here.
If the tracks appear asymmetrical when opened in Audacity, then the problem is pre-Audacity.
( I also think you can rule out USB cables).
Normalize in Audacity could correct the problem …
RMS-normalize is even better, but it’s not shipped with Audacity: it’s a plug-in you have to install.
