Thank you for asking that question. That's where my recommendation comes from for a more thorough examination of the issue of annoyance. From as far back as the 1960s, scientists and experts have been aware of contributions of personal noise sensitivity to the assessment of annoyance. There are factors, personal factors, that may impact that assessment of annoyance, whether amplified or reduced.
I'm sure within this room there is a variation in terms of how people react to, for example, the noise that keeps on interrupting us in the background. This is a very subjective metric. The co-founding factors need to be looked at in order to determine what best to do to mitigate it. Noise sensitivity has been found to be one significant co-founding factor contributing to annoyance.