Published in Women's Health Weekly, October 30th, 2008
"In 17 subjects, voice-producing element (VPE) prototypes were compared with the subject's regular tracheoesophageal shunt voice in a randomized cross-over trial. The evaluation was based on aeroacoustic measurements and perceptual analysis. Considerably higher fundamental frequencies were attained with the use of the VPE. The sound pressure level also increased for most subjects. The required driving pressures of the lung...
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