Abstract
This study presents the results of an acoustic and statistical analysis of labiodental and interdental fricative consonants, voiced and voiceless, from a variety of Mapudungun spoken in Alto Biobío. The present study aims to determine whether spectral, durational and amplitude parameters are able to differentiate these sounds by place of articulation and voicing. Results showed that spectral moments, duration, absolute amplitude and normalized amplitude were able to distinguish between voiced and voiceless fricatives, whilst variance, duration and normalized amplitude were able to separate labiodental from interdental consonants. However, the capability that variance and duration absolute had at distinguishing between voiced and voiceless consonants is restricted to labiodental consonants when the interaction between voicing, place of articulation and participant’s sex was considered. These results are discussed in the light of literature on the usefulness of these acoustic measurements at capturing contrasts of manner of articulation, place and voicing, and in view of previous studies on the properties of the phonetic and phonemic systems in this variety of Mapudungun.
Highlights
La sonoridad de las consonantes fricativas labiodental e interdental se ha tomado como un rasgo dialectológico que distingue entre las variantes del mapudungun hablando en Chile
This study presents the results of an acoustic and statistical analysis of labiodental and interdental fricative consonants, voiced and voiceless, from a variety of Mapudungun spoken in Alto Biobío
The present study aims to determine whether spectral, durational and amplitude parameters are able to differentiate these sounds by place of articulation and voicing
Summary
En el mapudungun hablado en Tirúa, en el suroeste de la Región del Biobío, Salamanca y Quintrileo (2009) reportan que las consonantes fricativas sonoras [v] y [ð] son mayoritarias, por lo que proponen que [f] y [θ] son alófonos de los fonemas /v/ y /ð/, respectivamente. En el mapudungun hablado en Melipeuco, Región de la Araucanía, predominan las realizaciones áfonas de las consonantes fricativas labiodental e interdental, por lo que son escogidas como representantes de ambos fonemas (Salamanca, Aguilar, Alvear & Barrientos, 2009). En Curarrehue, una localidad ubicada al sur de Lonquimay, en tanto, las realizaciones mayoritarias son áfonas, por lo que se proponen como representantes de los fonemas /f/ y /θ/ (Pérez y Salamanca, 2017). Este acercamiento acústico-estadístico es el foco de nuestro trabajo
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