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The paper describes an approach to text-to-speech synthesis based on processing in harmonic domain. A special harmonic analysis technique is presented that provides accurate estimation of instantaneous harmonic parameters. The technique is based on narrow band filtering aligned to the fundamental frequency, which improves estimation accuracy of higher-order harmonics with rapid frequency changes....
A new method for quasi-periodic signal analysis and modelling with application to speech processing is proposed in this paper. The model of quasi-periodic signal treats the signal as a composition the two components. Periodic component is modelled as a sum of harmonically related sinusoidal partials with slowly time-varying amplitudes and frequencies, aperiodic component is modulated white noise....
This is a proposal of concatenative text to speech synthesizer for the Polish language, based on diphones and ”Harmonics and Noise Model”(HNM). HNM has been successfully applied on a speech encoder and decoder, resulting in a high-quality of processed speech at low bit rate. Applying this model to speech synthesis system allows obtaining good quality of synthesized speech, and the small size of database...
This paper presents a frame-based method for estimation of instantaneous amplitudes and frequencies of pitch harmonics. Proposed method assumes that the speech signal is a combination of voiced (harmonic) and unvoiced (noise) components present in whole speech band. Harmonic transform is used as a frequency analysis tool which kernel is synchronized with time-varying pitch frequency. The speech signal...
W pracy, po krótkim omówieniu najczęściej stosowanych miar tłumienia i metod pomiarowych, przedstawiono metodykę wyznaczania składowych zespolonego modułu sprężystości i współczynnika tłumienia materiałowego w przypadku drgań wzdłużnych próbek betonowych przy wykorzystaniu wieloosiowego systemu badawczego Instron 8502 i metod cyfrowego przetwarzania sygnałów. Zaprezentowano charakterystyki techniczne...
W pracy przedstawiono sposób cyfrowego przetwarzania danych celem wyznaczenia współczynnika tłumienia materiałowego w modyfikowanych betonach konstrukcyjnych. Przedstawiono opis pozyskiwania danych poprzez pomiary w specjalistycznym systemie do zadawania obciążeń dynamicznych, teoretyczne podstawy cyfrowego przetwarzania sygnału oraz przykłady transformacji danych. Opisano specjalistyczny program...
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