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SPEECH ANALYSIS AND SYNTHESIS FOR HANDICAPPED

Lachezar Lichev

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s10.115View metrics

Abstract

This bachelor thesis is focused on speech synthesis of Czech language in frequency domain. The resulting software solution consis ts of the analyzer and synthesizer of selected elementary speech units. Speech synthesis is based on the LPC model. The analyzer analyzes an input phoneme unit in WAV format, divides it into microsegmens of length 20 ms and keeps the LPC coefficients, flag (voiced / unvoiced) and the residual prediction error signal. These data are then stored in the XML file. Further, this thesis deals with methods of speech microseg ment analysis - such as determining voice, pitch detection. From the side of resulting speech synthesis it’s about reverse conversion of microsegment parameters into the time domain, phonetic tr anscription, splitting sentences into syllables and their concatenation.

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Publication details

Title
SPEECH ANALYSIS AND SYNTHESIS FOR HANDICAPPED
Authors
Lachezar Lichev
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
LPCACFspeechsynthesissignal processing
References3

  1. Doc. Dr. Ing. Černocký, J.: Zpracování řečových signál ů – studijní opora http://www.fit.vutbr.cz/study/courses/ZRE/public/opora/zre_opora.pdf

  2. Psutka, J.: Komunikace s počítačem mluvenou řečí. Academia, Praha 1995

  3. JOrbis - Pure Java Ogg Vorbis Decoder: http://www.jcraft.com/jorbis/

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