When I wanted to edit my audio file, I realized the spectrum (littles lines on an audio file) was gone. It really helped me in splitting and stuff, so it sucks. Does anyone here knows why Vegas does this ? (I have Vegas 17.0 on windows 10 and it is likely that i have done a wrong command disabling the spectrum)

Thank you very much for having read my question, and btw sorry for my poor english

EDIT: I found the answer. Just do ctrl+shift+w