| 摘要 |
<p>The aim of the invention is to provide a visualisation of glottal behaviour in different phonation conditions (voiced or unvoiced consonants, vowels) without articulatory restriction and without limits in phoneme analysis. For this purpose, the invention provides a non-invasive approach comprising the diffuse illumination of the glottis using an external light source and the collection of the light signal by means of external photodetection. In accordance with the device of the invention, a light source (10, 12) is positioned externally to the person (P) being examined, at the lateral hypopharynx (HP). A photodetector (20), masked (22) against ambient light, is positioned immediately next to the skin (11) of the person (P) being examined. Said photodetector (20) is sensitive at least to the wavelength range of the light diffused by the source (10, 12) and is connected to an amplifier (24) which amplifies the signal emitted by the photodetector which, together with a signal (26) processing step, allows successive data relating to glottis opening amplitude to be viewed.</p> |
