Experimental Modification of the Western Electric #5 Electrolarynx to a Mouth-Type Instrument

A modification of the Western Electric #5 A electrolarynx is described and evaluated. The modification involved insertion of a bypass plug into the circuitry of this neck-type instrument thus converting it to a mouth-type electrolarynx. Intensity readings at the one-third octaves and intelligibility data were obtained with the modified instrument and with a Cooper-Rand electrolarynx. The instruments were judged to be equal in overall performance.