Is it possible to construct machines that will talk and understand speech? As early as the 18th century, attempts were being made to devise ways of mechanically reproducing human voices. The Austrian inventor, Wolfgang von Kempelen (1734 ～ 1804), built one such machine, consisting of a pair of bellows to produce air flow, and other mechanisms to simulate parts of the vocal tract. Alexander Bell (1847 ～ 1922) also constructed a 'talking head', made out of various synthetic materials, that was able to produce a few distinct sounds. Modern techniques have led to massive progress in this field. It is no longer necessary to build physical models of the vocal tract. Sound waves can be generated electronically by synthesizing the different components of the sound waves.
- ①Efforts were made to replicate human speech sounds in the 18th century.
- ②Kempelen devised mechanisms to simulate human vocal parts.
- ③Bell's 'talking head' was made out of a variety of artificial materials.
- ④It is still important to construct physical models of human articulators.
정답 ④
출처: 인사혁신처 공개 기출(공공데이터포털, 이용허락 제한 없음)