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Realizace TTS jako systémového ovladače pro Microsoft Speech API
Přibilová, Anna ; Přibil, Jiří
The paper deals with implementation of voice modification in the Czech and Slovak text-to-speech /TTS/ system as Microsoft speech application programming interface /MS SAPI/ TTS engine based on diphone inventory. The original male voice database serves for creation of three derived databases with modification factors given by the average formant and pitch shift between male, female and childish voices. The source-filter model as well as the harmonic speech model, both with cepstral description, were used.
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Zpracování řeči
Speech Processing is a periodic publication collecting the contributions presented at the Czech-German Workshops on Speech Processing organized every year in September in Prague. The papers are devoted to speech analysis, synthesis, recognition, enhancement and phonetics.
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Frequency scale mapping methods for voice conversion
Přibilová, Anna
The research report compares several approcaches to frequency scale mapping for voice conversion. All the presented methods may be used for transformation of voice characteristics between male and female or childisch. The advantage of the proposed non-linear methods is possibility of their implementation in the text-to-speech systems with cepstral description because of the unchanged number of points of the modified speech spectrum envelope in FFT-based methods.
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Inclusion of the Czech and Slovak TTS System to the MS SAPI 5 Standard
Přibil, Jiří
The report is aimed at analysis of structure and basic functions of the Microsoft SAPI 5 standard for Windows platform. A new developed TTS Engine called TTSKubec to be included in our Czech and Slovak TTS system is mainly described. Modifications of current version of the TTS system based on the diphone speech inventory working with the cepstral and the harmonic speech synthesis are also mentioned in the report.
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Analysis of wireless personal network with use of ultrawideband system
Ďurovič, Svetozár
In the paper various applications of ultrawideband technology in personal wirelless systems are presented. The architecture of the basic parts of the communication systems is described and special attention to the selected technical problems is given. The report contains contemporary state of art and comment to the regulatory issues in USA, Europe, Japan, and other countries.
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