Detail publikačního výsledku

State-Space Representation of Cepstral Vocal Tract Model for DSP Implementation

SMÉKAL, Z., VONDRA, M., VÍCH, R.

Originální název

State-Space Representation of Cepstral Vocal Tract Model for DSP Implementation

Anglický název

State-Space Representation of Cepstral Vocal Tract Model for DSP Implementation

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

One of the methods of speech production in text-to-speech (TTS) synthesis is the parametric method. An excitation signal excites the vocal-tract model with time-varying parameters. A new state-space cepstral vocal-tract model is described, which approximates both the formants and the antiformants of the model frequency response for voiced and unvoiced speech sounds. It thus differs from the currently used LPC model, which approximates the formants alone. Unlike methods of the type PSOLA, this method is convenient for prosody modelling and requires less memory capacity. The cepstral speech synthesis starts from the cepstral coefficients obtained by analysing the speech signal. In the paper a new structure of parametric vocal-tract model is proposed, which is formed by combining IIR and FIR digital filters. The model is optimised with respect to implementation on a fixed-point digital signal processor with Harvard architecture.

Anglický abstrakt

One of the methods of speech production in text-to-speech (TTS) synthesis is the parametric method. An excitation signal excites the vocal-tract model with time-varying parameters. A new state-space cepstral vocal-tract model is described, which approximates both the formants and the antiformants of the model frequency response for voiced and unvoiced speech sounds. It thus differs from the currently used LPC model, which approximates the formants alone. Unlike methods of the type PSOLA, this method is convenient for prosody modelling and requires less memory capacity. The cepstral speech synthesis starts from the cepstral coefficients obtained by analysing the speech signal. In the paper a new structure of parametric vocal-tract model is proposed, which is formed by combining IIR and FIR digital filters. The model is optimised with respect to implementation on a fixed-point digital signal processor with Harvard architecture.

Klíčová slova

Text-To-Speech Synthesis, Cepstral Vocal Tract Model

Klíčová slova v angličtině

Text-To-Speech Synthesis, Cepstral Vocal Tract Model

Autoři

SMÉKAL, Z., VONDRA, M., VÍCH, R.

Vydáno

03.09.2002

ISSN

1213-161X

Periodikum

ElectronicsLetters.com - http://www.electronicsletters.com

Svazek

2002

Číslo

9

Stát

Česká republika

Strany od

1

Strany počet

10

BibTex

@article{BUT40781,
  author="Zdeněk {Smékal} and Martin {Vondra} and Robert {Vích}",
  title="State-Space Representation of Cepstral Vocal Tract Model for DSP Implementation",
  journal="ElectronicsLetters.com - http://www.electronicsletters.com",
  year="2002",
  volume="2002",
  number="9",
  pages="10",
  issn="1213-161X"
}