I don't know if it is bad to annoy cats. If anyone plays the sound files while a cat is near, you can report the reaction.
I think that if Kitten plays the files, there could hardly NOT be a cat near, since I understand she has several. (No, she is not one of those people
you read about with hundreds of cats. She is just big-hearted, especially when it is a rescue situation, and has more than most people.)