One problem with that is that in an open-plan office, meetings can be de-formalized into open conversations and you'll have to monitor those if you don't want to be left out or might have something to contribute.

I once worked in an office where the founder would stroll out of his office (natch), and have a conversation with one person, extending to a second person, into a decision-type meeting with more people. Call it an evolving standup.

Even if you're locked into headphones this is can be a big distraction equivalent to not wearing headphones at all.

tl;dr: sometimes "the noise" is not noise.