Would you rather hear people fucking but not see them or see them but hear none of their noises?

I am staying in a hotel and yesterday heard people enjoying each other, muffled through the wall. Even though I couldn’t see them, it felt like I was actually there. Much more intimate than say watching someone in the building next door through the windows. Hearing those noises made me completely feral the rest of the day. I edged my cock for hours, and was partying the couple would get back to it last night. Alas, they must have just passed out. But there is always today.

Anyways, which scenario would turn you on more?