Sine wave (975Hz):
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Board falls
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Closing the umbrella, Opening
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Parachute deployment
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Extension, retraction of the telescopic
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Fishing, spinning reels, spinning
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The noise of the room in the hangar for
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Choir singing under the organ, Church
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Supermarket Cart
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Numeric Count, Female Voice, Warning System
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Noise inside the tractor, in the cab
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Whip pillow
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Flag flapping in the wind
★★★★★