Franking machine:
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Jet printer
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Disc read, Opens, closes the CD / DVD tray
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Computer mouse movement
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Turn off the hard drive, Turn on
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Write, read, Hard disk, room noise
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Disc read, CD / DVD drive
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Turn on, turn off the old monitor
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Interference, Modem connection, signal
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Office work, general noise
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Turning on the computer, shutting, fan noise
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Alarm, Computer interface
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Franking machine
★★★★★