Radiologist David Weiss, M.D., has an inexpensive alternative to a white noise generator to use in conjunction with speech recognition software.

By obliterating background sounds, the white noise generators make it easier for the software to recognize and translate speech. "A door closing can be a disaster" for the software, Weiss noted during his talk at RSNA 2010 in Chicago. But rather than a generator, the radiologist turns on a fan when he dictates.

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