Fan blade rotation, air cut:
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Air conditioning (outdoor unit)
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Electronic melody for SMS alerts
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SMS notification sound
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Email message sound
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Electric razor
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Spaceship freezer, defrost process
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Computer turning on, off, humming fan
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Hissing old tv
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Vibration noise, Faulty air conditioning
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Sound to start presentation
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Sewing machine
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Fan blade rotation, air cut
★★★★★