I understand the point of describing sounds made by objects or people not visible in a scene, especially when they are relevant to the plot and/or make the characters react to it.
We're building a website, that people will be sent to from an email. There's multiple home pages, because there are different groups in the email list that the home pages correspond to.
One of our accessible-savvy dev.teams are building a new web interface to a booking system. It looks and acts pretty much like a web calendar interface.