Laser printer:
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Pressing a keypad, input error sound
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Office work, general noise
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Computer mouse movement
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Signal read information, Computer interface
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Disc read, CD / DVD drive
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Alarm, Computer interface
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Repeatedly pressing a computer mouse
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Floppy disk reading
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Laser printer
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Franking machine
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Read, write, room noise, Hard disk
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Jet printer
★★★★★