Office work, general noise:
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Turn off the hard drive, Turn on
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Environmental sounds, Office work, typewriter
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Computer simulated laser
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Laser printer
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Hard disk, read, room noise, write
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Turn on, turn off the old computer
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Disc read, CD / DVD drive
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Closes the CD / DVD tray, Opens
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Computer mouse movement
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Repeatedly pressing a computer mouse
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Modem connection, signal, interference
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Turn on, turn off the old monitor
★★★★★