Computer interface, alarm:
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Photocopy (photocopy)
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Turning on the computer, shutting, fan noise
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Computer interface, alarm
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Matrix printer
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Write, room noise, read, Hard disk
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Floppy disk reading
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Computer interface, signals
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Shutting, Turning on the laptop, fan noise
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Franking machine
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Computer mouse movement
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Computer noise, Communication room
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Office work, general noise
★★★★★