Slightly off topic but the phenomenon of travelling voices is something I experienced in a bar in Edinburgh years ago.
I was way down the bar getting in a round and maybe 30' from the other lads round the table. There was background chatter so not totally still but in that EXACT position maybe a foot or 2 each way I could hear everything they said crystal clear - the volume was low but almost 'cleaned-up' somehow.
It was uncanny - needless to say I gently warned them not to discuss the merits of certain nearby ladies - just in case
