Laser printer:
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Office work, general noise
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CD / DVD drive, disc read
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Fan noise, shutting, Turning on the laptop
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Shutting, fan noise, Turning on the computer
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Photocopy (photocopy)
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Turn off the old monitor, Turn on
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Bios, Sound signal of a bios computer
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Turn off the old computer, Turn on
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Old computer keyboard
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Repeatedly pressing a computer mouse
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Typewriter, environmental sounds, Office work
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Closing the laptop cover, Opening
★★★★★