Office work, general noise:
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Turn on, turn off the old computer
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Photocopy (photocopy)
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Computer interface, signals
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General noise, Office work
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Shutting, Turning on the laptop, fan noise
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Old computer keyboard
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Closing the laptop cover, Opening
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Matrix printer
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Computer keyboard
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Computer mouse movement
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Communication room, computer noise
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Insert the disk into the drive, read the
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