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Journal of applied research and technology
versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423
Resumen
HERNANDEZ-MENA, Carlos Daniel; MEZA-RUIZ, Ivan V. y HERRERA-CAMACHO, José Abel. Automatic speech recognizers for Mexican Spanish and its open resources. J. appl. res. technol [online]. 2017, vol.15, n.3, pp.259-270. ISSN 2448-6736. https://doi.org/10.1016/j.jart.2017.02.001.
Development of automatic speech recognition systems relies on the availability of distinct language resources such as speech recordings, pronunciation dictionaries, and language models. These resources are scarce for the Mexican Spanish dialect. In this work, we present a revision ofthe CIEMPIESS corpus that is a resource for spontaneous speech recognition in Mexican Spanish of Central Mexico. It consists of 17 h of segmented and transcribed recordings, a phonetic dictionary composed by 53,169 unique words, and a language model composed by 1,505,491 words extracted from 2489 university news letters. We also evaluate the CIEMPIESS corpus using three well known state of the art speech recognition engines, having satisfactory results. These resources are open for research and development in the field. Additionally, we present the methodology and the tools used to facilitate the creation of these resources which can be easily adapted to other variants of Spanish, or even other languages.
Palabras llave : Automatic speech recognition; Mexican Spanish; Language resources; Language model; Acoustic model.