My parents just had the radio hooked up to the same circuit that was driving the bathroom lights. You enter the room, turn on the lights and there was instant audio. Makes sense to put this into a product.
It took me a while, but I've convinced my wife that farting is ok, and that you should only worry about subjecting others to lousy odours, and even that only when you are visiting someone or some place (indoors). Closing the door usually resolves this. The stigma is especially bothersome with a naturally shy toddler who wouldn't take a dump anywhere but home.
FWIW, music does not stop people walking into smelly toilets, but to each their own. :)
The product likely even makes sense, I just find the phenomena curious and sometimes infuriating (like with my toddler).
That’s my understanding of it anyways.
Another side effect was that you always knew when the bathroom was in use (aside from someone forgetting to turn the light off, which you now had radio playing to remind you off).
But why and how did we become bothered by the _sounds_ of it? Are you bothered by the coo-coos of birds, or morning rooster calls. Cats purring, screeching cat calls or dogs barking? All of these can be similarly annoying, but we are not "solving" them.
It's weird how our association of sounds with smells and dirtiness of taking a dump has made sounds which are rarely that bad in objective sense (loudness, pitch...) so unpleasant.
It's also how it's considered impolite to slurp a soup, and some people are outright disgusted by hearing it being done.