DBPapers
DOI: 10.5593/sgem2011/s10.115

SPEECH ANALYSIS AND SYNTHESIS FOR HANDICAPPED

AUTHOR/S: L. LICEV, A. BRETTSNAJDR
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 2, 581-588 pp

ABSTRACT

This bachelor thesis is focused on speech synthesis of Czech language in frequency domain. The resulting software solution consists 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 microsegment 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 transcription, splitting
sentences into syllables and their concatenation.

Keywords: LPC, ACF, speech, synthesis, signal processing

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