Room noise:
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Throw nutshells on the floor
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Squatting the Mat (2 seconds)
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Sine wave (975Hz)
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Throw the item in the trash.
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Air dissection
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Church, the noise of the crowd in the floor
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US police car siren sounds
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The receptionist trolley passes by
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Flag flapping in the wind
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Closing a cigarette case, Opening
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Tinder duster surface
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Throw an old bike to the ground
★★★★★