Dialogue Act-Based Expressive Speech Synthesis in Limited Domain for the Czech Language

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F20%3A43959687" target="_blank" >RIV/49777513:23520/20:43959687 - isvavai.cz</a>

Result on the web

<a href="http://www.informatica.si/index.php/informatica/article/view/2559" target="_blank" >http://www.informatica.si/index.php/informatica/article/view/2559</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31449/inf.v44i2.2559" target="_blank" >10.31449/inf.v44i2.2559</a>

Result language

angličtina

Original language name

Dialogue Act-Based Expressive Speech Synthesis in Limited Domain for the Czech Language

Original language description

This paper deals with expressive speech synthesis in a dialogue. Dialogue acts - discrete expressive categories - are used for expressivity description. The aim of the work is to create a procedure for development of expressive speech synthesis for a dialogue system in a limited domain. The domain is here limited to dialogues between a human and a computer on a given topic of reminiscing about personal photographs. To incorporate expressivity into synthetic speech, modifications of current algorithms used for neutral speech synthesis are made. An expressive speech corpus is recorded, annotated using a predefined set of dialogue acts, and its acoustic analysis is performed. Unit selection and HMM-based methods are used to synthesize expressive speech, and an evaluation using listening tests is presented. The listeners asses two basic aspects of synthetic expressive speech for isolated utterances: speech quality and expressivity perception. The evaluation is also performed for utterances in a dialogue to asses appropriateness of synthetic expressive speech. It can be concluded that synthetic expressive speech is rated positively even though it is of worse quality when comparing with the neutral speech synthesis. However, synthetic expressive speech is able to transmit expressivity to listeners and to improve the naturalness of the synthetic speech.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20205 - Automation and control systems

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

Informatica (Ljubljana)

ISSN

0350-5596

e-ISSN

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Volume of the periodical

44

Issue of the periodical within the volume

2

Country of publishing house

SI - SLOVENIA

Number of pages

20

Pages from-to

147-166

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85090763750