Speech synthesis using phase vocoder techniques

Joseph Di Martino 1
1 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : A new light is thrown on the Portnoff [1] speech signal timescale modification algorithm. It is shown in particular that the Portnoff algorithm easily accommodates expansion factors bigger than 2 without causing reverberation nor chorusing. The modified Portnoff algorithm, which draws on spectral modification techniques due to Seneff [2], has been tested on several speech signals. The quality of the synthesized signal is totally satisfactory even for big expansion factors. The article gives a brief summary of the Portnoff algorithm and spells out the modifications introduced. It is shown that the phase unwrapping procedure constitutes a crucial point of the algorithm.
Type de document :
Communication dans un congrès
EUROSPEECH - Fifth European Conference on Speech Communication and Technology - 1997, Sep 1997, Rhodes, Greece. 1997
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https://hal.inria.fr/hal-00835319
Contributeur : Joseph Di Martino <>
Soumis le : mardi 18 juin 2013 - 14:11:58
Dernière modification le : jeudi 11 janvier 2018 - 06:19:56

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  • HAL Id : hal-00835319, version 1

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Joseph Di Martino. Speech synthesis using phase vocoder techniques. EUROSPEECH - Fifth European Conference on Speech Communication and Technology - 1997, Sep 1997, Rhodes, Greece. 1997. 〈hal-00835319〉

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