Why does the referee's whistle sound different in rugby?

Question

Why does the whistle in rugby have a lower pitch in rugby than any other sport?

Answer 1

Carbon emissions.

Answer 2

Different whistle. The soccer refs use a high pitched whistle compared to rugby's lower pitched one as soccer refs tend to be further away from the 'game'.

So my dad says - he used to be a soccer ref.

Answer 3

Bigger balls than any other sports!!!!  I mean the peas inside are bigger LOL.

Answer 4

dunno but s ganson does it weird lol