Resumo

GURLEKIAN, Jorge A; EVIN, Diego; TORRES, Humberto  e  RENATO, Alejandro. Acoustic Analysis and Automatic Recognition Systems in spontaneous speech. Subj. procesos cogn. [online]. 2010, vol.14, n.2, pp.89-98. ISSN 1852-7310.

In this paper two acoustic speech analysis systems are presented with applications to the description of spontaneous speech segments and a system of automatic spontaneous speech recognition oriented to word detection. The first analysis system presents in detail all segment and supra-segment instinct speech features simultaneously and associated frequency, power and duration. The second automatically displays the physical parameters associated to intonation in a surface that quantifies the vocal field of the speaker and measures the vocal and dynamic range in spoken discourse. A histogram of the fundamental frequency proves useful to compare intonation tendencies from session to session. Finally a recognition tool with acoustic models was developed for Spanish spoken in Argentina. It transcribes the recorded text sounds and enables the application of other tools for natural language processing.

Palavras-chave : Acoustic analysis; Automatic speech recognition; Fundamental frequency.

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