You’d only notice this if you were sitting near Joe Zagacki.
You certainly wouldn’t be able to tell by listening to the radio.
When he’s calling a basketball game, he flips a tiny hourglass constantly while calling the action. The sand runs out every 90 seconds. Every time he flips it, he repeats the score.
Why? A broadcaster repeating the score is vital to your understanding of the game. You might hear that Sheldon McClellan missed a long two off the back rim and Tonye Jekiri grabbed the rebound and was fouled. Now that you know the Hurricanes are up 29-24 with 5:38 to go in the first half, or whatever the case may be, you picture the game in much richer detail.
Zagacki’s little buddy helps him lay all it out for you. The great ones know all the tricks.