Or pipers hear other players, most often in competition.
First, as many players as possible line up such that they can whisper to their immediate neighbors but not hear players any further away.
Amid the pre-concert cacophony, you could hear individual players trying one last time to shape a solo line or nail a difficult passage.
Players can only talk to and hear players that are near them.
"I hear players talking about it," said Buck Showalter before last night's game.
Despite being deaf since birth, he plays among hearing players at the highest level in Europe.
The infielder said he often heard players muttering that an opponent is "juiced" after a home run.
I have heard players coming off the pitch, worrying what the perception would be about them because of that performance.
The audio is dreadful: It's impossible to hear a ball kicked or players colliding.
"You hear players talking among themselves," said one player who spoke on condition of anonymity.