Word: kersta
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Dates: during 1965-1965
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...VOICE PRINTS may solve the now virtually impossible task of catching obscene, threatening and anonymous phone callers. Variations in size and shape of vocal cavities give each human voice a unique sound, explains Bell Telephone Labs' Dr. Lawrence G. Kersta, who developed the technique. By means of a sound spectrograph, Kersta converts spoken words into picture patterns that he says identify the speaker as reliably as his fingerprints. The system works no matter how the voice is disguised. At this stage, voice prints require wiretapping, which may pose legal problems, but someday police may record every suspect...