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Thursday December 27, 2007 1:02 pm

Sound System Keeps to Itself


Personal Sound SystemChan-Hui Lee and his team at the Korea Advanced Institute of Science and Technology purport that someday we will be able to listen to music within a Personal Sound System that will not bother others standing outside it. Their prototype features 9 1/2-inch speakers arranged in a row. They found that there was a 20 decibel difference between the center and the outside, comparable to a regular conversation and a whisper. Lee foresees the technology being utilized eventually for cell phones and PDAs. We would just settle for using it on the neighbors’ backyard barbecues.


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