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Speech Processing
Vích, Robert
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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Composite cepstral models for speech synthesis
Vondra, Martin ; Smékal, Z.
The composite cepstral model realizes the approximate inverse cepstral transformation. Its transfer function is realized as an IIR digital filter, in which the delay blocks are substituted by FIR filters, whose transfer functions are given by the Z-transform of the real cepstrum. In the contribution different implementations of the composite cepstral model using 1.sup.st.sup., 2.sup.nd.sup. and cascade canonic forms are examined and evaluated according to computational and storage requirements.
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Microprosody analysis
Přibil, Jiří ; Vích, Robert
In the contribution the statistical and spectral analyses of the microintonation component for several speakers are performed and used for the synthesis of a FIR digital filter for suppresion of the microintonation signal prior to the decomposition of the virtual melody contour into the sentence and word melody.
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Czech triphone synthesis of female voice
Horák, Petr ; Hesounová, Alžběta
The new triphone inventory of a female voice for TTS system has been finished. The motivation for its creation was the fact that there was no female voice synthesis for Czech that would be at our disposal, although it is needed in various applications. The corpus of the texts used for labelling of the new inventory consisted of 550 sentences. The texts were read by a professional female speaker who was instructed to pronounce the sentences with ideally a monotonous prosody, at a constant speech rate.
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