I hope you can answer a question. In a house, when two rooms are next to each other, why can you hear the loud TV on the next room, despite the wall between them and despite that their two doors are closed. (I don't know a lot on physics, but isn't there something like sound travelling, does the sound travel through the wall ? It must be 3 to 5 centimetres). The loud TV is especially annoying because I hear all the bass sounds (less of the higher-pitched sounds). And I read about how just bass sound makes you anxious (especially if you are trying to sleep).
Thanks. Mario