منابع مشابه
Mixed excitation for HMM-based speech synthesis
This paper describes improvements on the excitation model of an HMM-based text-to-speech system. In our previous work, natural sounding speech can be synthesized from trained HMMs. However, it has a typical quality of “vocoded speech” since the system uses a traditional excitation model with either a periodic impulse train or white noise. In this paper, in order to reduce the synthetic quality,...
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Linear Prediction (LP) analysis has proven to be very powerful and widely used method in speech analysis and synthesis. Synthesis by LP-based approach is carried by exciting an allpole model (whose parameters are derived by LP analysis). Synthesis is carried by using mixed excitation source consisting of a sequence of impulses for voiced regions and white-noise source for unvoiced regions. In t...
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In our previous study, we proposed the waveform interpolation (WI) approach to model the excitation signals for hidden Markov model (HMM)-based speech synthesis. This letter presents several techniques to improve excitation modeling within the WI framework. We propose both the time domain and frequency domain zero padding techniques to reduce the spectral distortion inherent in the synthesized ...
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This paper introduces a novel excitation approach for speech synthesizers in which the final waveform is generated through parameters directly obtained from Hidden Markov Models (HMMs). Despite the attractiveness of the HMM-based speech synthesis technique, namely utilization of small corpora and flexibility concerning the achievement of different voice styles, synthesized speech presents a cha...
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This paper describes an excitation model based on amplitude spectrum for hidden Markov model (HMM)-based speech synthesis system (HTS). Residual signal obtained from inverse filtering is decomposed into periodic and aperiodic spectrums in frequency domain. Amplitude spectrum of half pitch period length is reserved as periodic component in synthesis stage and zero-phase criterion and pitch synch...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1988
ISSN: 0001-4966
DOI: 10.1121/1.2026226