"We measure the frequency of the vibration in cycles per second (hertz). The faster the vibration, the higher the frequency. A baritone's voice reaches 400 hertz, while a soprano sings up to 1,100 hertz. We should also mention that the start and release of a vibration is studied through the term "impulsivity," which has nothing to do with you finishing the whole pint of ice cream or how randomly the sound occurs."
"I walk down Wynot Road, microphone in hand. On one side, single-family colonial houses with pink azaleas line the street; on the other, a chain-link fence. I can hear what's happening behind that fence long before I see it: the pops, plinks, thwacks and smacks of pickleball matches. Players say the sound is joyous. Neighbors say it's dreadful. On the courts, the noises aren't erratic to the players. They anticipate them."
Approximately 70,000 pickleball courts across the United States produce sharp, impulsive paddle-ball noises that have provoked municipal fights, litigation, vandalism, acoustical mitigation contracts and equipment redesigns. Neighbors near courts report hearing pops, plinks, thwacks and smacks from courts before seeing activity; players anticipate and intentionally produce those impulsive sounds when striking the ball. Sound characteristics include frequency measured in hertz and impulsivity describing rapid starts and stops of vibrations. Baritone voices reach about 400 hertz and sopranos up to 1,100 hertz. Impulsive sounds are perceived as more jarring, likened to snaps, crackles or pops.
Read at The Washington Post
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