Communication room, computer noise:
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Repeatedly pressing a computer mouse
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Signals, Computer interface
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Interference, Modem connection, signal
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Turn off the hard drive, Turn on
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Insert the disk into the drive, read the
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Shutting, Turning on the computer, fan noise
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Disc read, CD / DVD drive
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Computer mouse movement
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Read, room noise, write, Hard disk
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Franking machine
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Laser printer
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Closing the laptop cover, Opening
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