Some of his other accomplishments include the production of the first functional hearing aid, the 2-A audiometer, and the artificial larynx.
2.
Esophageal speech is produced without an artificial larynx, and is achieved by pumping air from the mouth into the upper esophagus.
3.
Following Billroth's first successful laryngectomy on December 31, 1873, Gussenbauer created an external vocal prosthesis ( artificial larynx ) for the patient.
4.
The 81-year-old used an artificial larynx, a machine that when pressed against his neck reproduces his speech in a sometimes hard-to-understand monotone.
5.
"Little Neutrino "'s unique vocal distortion is a result of an artificial larynx, which was used by the track's writer, Dee Long to " mouth " the track's lyrics.
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