![]() The hole through the lips is about 8 mm wide at its narrowest point but still wide enough to allow the chord that moves the tongue to pass freely.Ī vacuum cleaner blower is cushioned in foam rubber and enclosed within On the left the electro-magnet which closes the narrow lips to pronouce an "oo" sound. The air valve controls the flow of air from the blower. The tongue and lips sometime have to move very fast so I made these parts out of The tongue motor turns a balsa wood drum to raise and lower the tongue. The reed mechanism provides the up-and-down movement for the slider When the tongue is in the "oo" position (about half way up) the lipsĬlose to form a narrow extended aperture like our pursed lips when we say "oo". Positions to pronounce the vowels "ee", "eh", "oo", "aw" and "ah". It moves up and down inside the mouth (a Plexiglas tube) to different The tongue is a cylinder of balsa wood with a The current version is a modest strip of polystyrene, 0.5 mm thick. Mistakes, most of them made of hammered brass, the traditional material. ![]() Shapes and thicknesses to find the right kind of reed. It took some experimentation with different kinds of material, The round things at the top are holders for the reeds, in organ Is used to fine-tune the pitch of the reed. The idea comes from organ-building practice, where a fixed spring (without a roller) The spring is carried by a slider, driven by a motor. Roller running up and down and pressed against it by a spring. The effective length of the curved reed (brown) is adjusted by a Furthermore there are just two positionsįor the lips: open - as for "ah", and narrow - as for "oo". To pronounce consonants just the vowel sounds. Unlike the previous version, it does not make any attempt Here the sound of the larynx is produced by an air-blown reed with adjustable pitch
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