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Sistema de Codificação de Voz de Alta Qualidade com Banco de Filtros
Elizabeth Fernandez; Luís Nuno Silva; João Rodrigues; Ana Maria Tomé; Francisco VazThis paper describes a high quality speech coding system based in the ITU Recommendation G.722 “7 kHz audio coding within 64 kbit/s”. Provides a high-level description of the recommended algorithm and a brief discussion about the arithmetical choices, which have been made. Some performance results are provided. ; Este artigo descreve um sistema de codificação ...
Síntese Articulatória: Uma Introdução
António Teixeira; Luís Nuno Silva; Francisco VazIn this paper we present an overview of articulatory synthesis, covering: history, usual approaches, different models for the main blocks of an articulatory synthesizer, how to obtain parameters for the models. Models adopted for the articulatory synthesizer in development by the authors for Portuguese, named SAP, are described in some detail. ; Neste artigo apresenta-se uma visã...
An Object Oriented Articulatory Synthesizer for Windows
Luís Nuno Silva; António Teixeira; Francisco VazThe main motivation for this work was the production of speech synthesis with near natural quality using a modular application with a user-friendly interface.One of the most promising methods is the use of articulatorysynthesis, which is a technique based on direct modeling ofthe human speech production process.A modular application will allow the integration of several models, improved and new, ...
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