Office work, general noise:
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Manual copy machine
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Insert the disk into the drive, read the
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CD / DVD drive, disc read
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Turn off the hard drive, Turn on
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Closes the CD / DVD tray, Opens
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Computer interface, alarm
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Franking machine
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Fan noise, shutting, Turning on the laptop
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Disc read, Opens, closes the CD / DVD tray
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Typewriter, Office work, environmental sounds
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Matrix printer
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Computer interface, signal read information
★★★★★