Hissing old tv:
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Electric wheelchair
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Defrost process, Spaceship freezer
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Humming fan, off, Computer turning on
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An electric toothbrush
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Whatsapp notification sound
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Faulty air conditioning, vibration noise
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Electronic melody for SMS alerts
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Exhaust fan
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Off, Air conditioning, on
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A vacuum cleaner
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Hissing old tv
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Android notification sound
★★★★★