In a world dominated by electronic signals, is good to know that the acoustic world of natural sounds is still being harnessed to serve the cause of good--from saving the manatee by warning them off from propeller sounds to clarifying speech perception with noise-canceling algorithms. Over 1100 papers will be presented at this week's ASA2009. R.C.J.
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Acoustic signal processing technologies examined at this week's Acoustical Society of America meeting here focused on cutting through noise to improve signal detection and localization using arrays of MEMS microphones. Researchers from the National Cheng Kung University of Taiwan proposed using MEMS microphones with a time-reversal technique to improve voice reception for mobile speakerphones and laptop computers.
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