What price peace and quiet?

Scott Sommerfeldt thinks the quiet PC will cost about 20 dollars more than usual. Along with acoustics graduate Kent Gee, Sommerfeldt has designed a noise control unit to cancel out the whirr of cooling fans. The design, incorporating four tiny microphones and loudspeakers, leaves only the noise of air flowing through the system, a sound that the pair hopes to eradicate ultimately, as well. Though alternative solutions for quiet computers do exist, those choices are not without compromise.
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