D'Arrigo, C. and Mento, G. and Messina, G. and Salviera, C. (1989) Discriminazione uditiva e formazione del linguaggio. Accademia Peloritana dei Pericolanti, Classe di Scienze Medico-Biologiche, LXXVII. pp. 5-21.
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A study about the acoustic characteristcs of phonation gives us a further interpretation of why deaf people haven’t a correct language.
The Authors have established, by spectral analysis, the variability field of the vowel formantic frequencies, essential to recognize the phonemes. The correlation between the signal emitted during the normal phonation and the ability to perceive and to discriminat by the choclea allowed to establish a new interpretation of the difficulties of deaf people to have a correct language.
For this reason we have classified the values of the vowel frequencies, which are necessary to recognize the language, in relation to the dislocation of the risonance points on the basilar membrana (MEL scale). This membrana, in fact, reacts to the sound according to a semilogarithmic disposition of the stimolated points. So, if the membrana has a low number of sensory cells, low will be the language discrimination and intellegibility.
|Subjects:||M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1989|
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1989
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1989
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere, Filosofia e belle Arti > 1989
|Depositing User:||Dr A F|
|Date Deposited:||27 Dec 2012 12:26|
|Last Modified:||27 Dec 2012 12:26|
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