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Research is in progress in the following areas: development of a wearable voice monitor with biofeedback capability; development of an improved artificial electrolarynx communication system with neural control for patients who have lost their voice boxes (a voice neural prosthesis); development of an automated computer-based voice quality assessment system; development of an ultra high-speed digital imaging system for assessing human vocal cord vibration Dr.
More than 30 years ago, Stout developed a unique prosthesis that could be used by postlaryngectomy patients who were unable to develop esophageal speech and unwilling to use an electrolarynx.
4) The electrolarynx was sometimes used with the Cooper-Rand reed, a tube that was inserted into the mouth to transmit sound.