Vertical audio zoom

I know I can zoom horizontally on a audio file. Can I zoom vertically? Or at least magnify the wav that’s there.
I have a track that was recorded pretty low. You can hear it but editing the wav is a little tricky.
Thanks for the help.

In arrange window view:
To zoom in vertically please perform the similar gesture right over the track list (where track names, mute, solo etc. are displayed).

A second alternative is to double tap the audio file to open it in the audio editor.
Hold the handle top left and move it to the top, to bring the audio editor to full screen view.

Hope that helps,