Links:[1] https://www.die.upm.es/en/grupo_de_investigacion/3961/gth-grupo-de-tecnolog%C3%ADa-del-habla [2] https://www.die.upm.es/sites/default/files/PFC%202010_16%20Iv%C3%A1n%20D%C3%ADaz-Concha%20Dolado.pdf