Air conditioning (outdoor unit):
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Whatsapp notification sound
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Sewing machine
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Sound to start presentation
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Hissing old tv
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Air cut, Fan blade rotation
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A vacuum cleaner
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Spin, Hard disk, read
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Electronic melody for SMS alerts
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Off, humming fan, Computer turning on
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Air conditioning (outdoor unit)
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Electric wheelchair
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Vibration noise, Faulty air conditioning
★★★★★