Análisis acústico de vocales de niños costarricenses
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Coto Jiménez, Marvin
Morales Rodríguez, Maribel
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Abstract
En este artículo se presenta un análisis acústico de vocales pronunciadas por niños costarricenses con edades entre los 6 y los 12 años. Estos análisis tienen como objetivo lograr una mejor comprensión de las características del habla producidas por este grupo en particular y, de esta manera, brindar información importante para la mejora de los reconocedores automáticos del habla y la identificación del hablante. Para este propósito, se construyó una base de datos con palabras aisladas que contemplan los fonemas, de acuerdo con varias etapas del desarrollo del lenguaje. Adicionalmente, se desarrolló una estrategia para la interacción con los niños. Los resultados confirman y complementan los resultados reportados en la literatura, pues muestran que existe una mayor variabilidad en parámetros como los formantes, la duración y el tono de las vocales emitidas por los niños, en comparación con los adultos. Los resultados permiten caracterizar cuantitativamente estos sonidos del habla, y establecer futuras investigaciones en áreas como el reconocimiento de habla y su dependencia del
género y la edad dentro de esta comunidad.
This paper presents an acoustic analysis of vowels pronounced by a group of Costa Rican children, aged between six and twelve years. These analyses aim to achieve a better understanding of the speech characteristics produced by this particular group and thus provide important information for the improvement of automatic speech recognizers and speaker identification. For this purpose, a database consisting of isolated words was built, which contains the phonemes according to various stages of language development in children. Additionally, a strategy for interaction with them was developed. The results confirm and complement the results reported in the literature, showing that a greater variability of speech parameters such as formants, tone, and duration are present in children in comparison to adults. The results allow the characterization of these speech sounds and the possibility of establishing future research in areas such as speech recognition and its dependence on gender and age in this community.
This paper presents an acoustic analysis of vowels pronounced by a group of Costa Rican children, aged between six and twelve years. These analyses aim to achieve a better understanding of the speech characteristics produced by this particular group and thus provide important information for the improvement of automatic speech recognizers and speaker identification. For this purpose, a database consisting of isolated words was built, which contains the phonemes according to various stages of language development in children. Additionally, a strategy for interaction with them was developed. The results confirm and complement the results reported in the literature, showing that a greater variability of speech parameters such as formants, tone, and duration are present in children in comparison to adults. The results allow the characterization of these speech sounds and the possibility of establishing future research in areas such as speech recognition and its dependence on gender and age in this community.
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Keywords
Análisis del habla, Niños, Tonos, Vocales, Fonemas, Speech analysis, CHILDREN, Pitch, Vowels, Phonemes
Citation
https://revistas.ucr.ac.cr/index.php/filyling/article/view/42445