Pressing a keypad, input error sound:
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Jet printer
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Signals, Computer interface
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Manual copy machine
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Double click computer mouse
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Laser printer
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Old computer keyboard
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Turn off the hard drive, Turn on
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General noise, Office work
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Turning on the computer, shutting, fan noise
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Computer mouse movement
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Disc read, CD / DVD drive
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Turn off the old monitor, Turn on
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