If office noise is such a problem, why don’t noisy coffee shops, airports, or co-working spaces bother us?
"The problem may be that, in our offices, we can’t stop ourselves from getting drawn into others’ conversations or from being interrupted while we’re trying to focus. Indeed, the EEG researchers found that face-to-face interactions, conversations, and other disruptions negatively affect the creative process."
This HBR article suggests the problem with noisy offices is more a matter of who's making the noise than how loud it is. Recent brain science suggests just the right amount of noise (i.e. coffee shop level) may enhance creativity.