The phase substitutions in Czech harmonic concatenative speech synthesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F03%3A00000252" target="_blank" >RIV/49777513:23520/03:00000252 - isvavai.cz</a>

Alternative codes found

RIV/49777513:23520/03:00000054

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The phase substitutions in Czech harmonic concatenative speech synthesis

Original language description

This paper describes the issues of the usage of various phase component types in the development of the Czech TTS system based on harmonic sinusoidal signal representation. We have found the approaches for speech representation based on sinusoidal coding[1] or harmonic plus noise modelling [2] very promising. It is mainly due to possibility of high compression of the spectral representation and possibility to 'smooth' the transitions on the spectral level. The major inconvenience is the necessity to use natural phase components to reach quality synthesis with preserved naturalness. Trying to interpolate the phase components across the concatenations causes the discontinuities in generated signal. We found that the discontinuities substantially degradethe fluency of synthesized speech. We propose the method of substituting the phase components by one locally constant phase component to guarantee the local phase coherence.

Czech name

Substituce fáze v české harmonické konkatenační syntéze řeči.

Czech description

Tento článek popisuje hlediska užití různých typů složek fáze při vývoji českého TTS systému založeného na reprezentaci harmonickým sinusoidálním signálem. Nalezli jsme velmi slibný přístup pro reprezentaci řeči založený na sinusoidálním kodování [1] nebo harmonickém plus šumovém modelování.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

<a href="/en/project/GA102%2F02%2F0124" target="_blank" >GA102/02/0124: Voice technologies for support of information society</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Lecture Notes in Artificial Intelligence

ISSN

0302-9743

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

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Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

333

UT code for WoS article

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EID of the result in the Scopus database

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