Air conditioning (outdoor unit):
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IPhone notification sound
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Air conditioning (outdoor unit)
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Spaceship freezer, defrost process
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Sound to start presentation
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Windows notification sound
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Old tv on, off
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Electronic melody for SMS alerts
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Vibration noise, Faulty air conditioning
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A vacuum cleaner
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Portable fan
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Hissing old tv
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An electric toothbrush
★★★★★