Type of flooring for upper duplex

[Nicholas Ludwiczak]

I have an upper duplex that is about old linoleum and half carpet with the carpet being in the hallway, living room and dining room. As it is now, people walking around upstairs is kind of loud in the lower unit. I plan in replacing the dining room carpet with vinyl flooring since carpet doesn’t belong in the dinning room. I would really like to replace the hallway with vinyl and maybe even the bedrooms but I am concerned that removing all the carpet and replacing it with vinyl make the sound worse. I would use the more expensive “quieting” underlayment but I am not sure how that will compare to how things are now. Any suggestions are appreciated.