Matrix printer:
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Matrix printer
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Communication room, computer noise
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Photocopy (photocopy)
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Modem connection, signal, interference
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Franking machine
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Signals, Computer interface
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Repeatedly pressing a computer mouse
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Laser printer
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Input error sound, Pressing a keypad
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Computer mouse click
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Turn off the hard drive, Turn on
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General noise, Office work
★★★★★