Ive got a sound playing on one page, but when i leave the page/room i want the sound to stop, but it doesn't. Ive set the object to switchable but theres no script to turn the sound off

I assume this is a gamebook, which I haven't really used, but in the TA GUI there is an option to 'Stop Sound'. You can add that to the script that runs when switching the page or the room.