The Swiss, organised as they are, have devised a way round this problem. At lunch time and after say 10pm then you should try not to make too much noise. At all other times noise is OK. If you have small children then this is quite normal. My Swiss wife assures me that as long as you stick to these times then nobody else has a leg to stand on. The average Swiss has been brought up with these "rules" from a tender age and will then be happy. If they do complain then at least you know, and can point out, that you have the right on your side.