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Análise e Síntese de Fala

Análise e Síntese de Fala


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About the Book

Este livro apresenta o desenvolvimento teórico e experimental de ferramentas de análise e síntese de sinais de fala. Nele são apresentadas e desenvolvidas várias técnicas de análise do sinal de fala com o objetivo de extrair um conjunto de parâmetros necessários à síntese da fala usando modelos de Formantes ou modelos LPC. O primeiro capítulo faz uma caracterização fonética da língua Portuguesa seguindo-se uma descrição dos cuidados a ter durante o processo de gravação de uma base de dados de fala. Depois é apresentado o desenvolvimento teórico das técnicas de análise Cepstral e análise por LPC's com as matrizes de autocorrelação e covariância. Estas técnicas são utilizadas para realizar o alisamento espectral e para extração automática das frequências formantes e frequência fundamental (F0). É ainda apresentada a implementação de um sintetizador de formantes empregue para testar os modelos desenvolvidos. Apresentam-se no capítulo 5 os detalhes de implementação de um sistema de conversão texto fala (Text-To-Speech) em Português.


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Product Details
  • ISBN-13: 9783659062063
  • Publisher: Eae Editorial Academia Espanola
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Spine Width: 15 mm
  • Width: 152 mm
  • ISBN-10: 3659062065
  • Publisher Date: 05 Mar 2013
  • Height: 229 mm
  • No of Pages: 256
  • Series Title: Portuguese
  • Weight: 431 gr


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