Office work, general noise:
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Environmental sounds, typewriter, Office work
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Opens, closes the CD / DVD tray, disc read
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Computer keyboard
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Repeatedly pressing a computer mouse
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Input error sound, Pressing a keypad
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Turn on, turn off the old computer
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Signals, Computer interface
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Hard disk, write, room noise, read
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Computer mouse click
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Turn on, turn off the old monitor
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Read the, Insert the disk into the drive
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Matrix printer
★★★★★