More public annoyance
This raises issues of freedom of speech and the use of public spaces. Those matters are complicated enough in my own culture - so I have no clue what the answers are here.
You heard me rave against christian evangelists - so this shows you I'm annoyed by people who make bad noises, no matter what their nationality, color or religion.
By the way, this is a photo of the actual speakers that broadcast the annoying sounds.