3 ms·Quite the opposite - hence, 'quiet room'.by dsirijus 14y agoQuite the opposite - hence, 'quiet room'.rokhayakebe 14y agoHow do you hear your heartbeat if you can cannot hear your keyboard keys when pressed?X-Istence 14y agoBecause the veins are very near your ear canal. Any outside sound is not available, so the only sound you hear is those that are internal and wouldn't get very far anywhere else...dsirijus 14y agoAnd I imagine even them are not louder, just that you're a lot more focused on them.