Visual Arts

Abstract Several techniques used in the analysis of dynamic nonlinear systems are applied in order to evidence and analyse some of the short-term nonlinear nonstationary characteristics of speech signal production. A new method of speech signal ...

The paper presents theoretical support for and describes the use of a fuzzy paradigm in implementing a TTS system for the Romanian language, employing a rule-based formant synthesizer. In the framework of classic TTS systems, we propose a new approach in order to improve formant trace computation, aiming at increasing synthetic speech perceptual quality. A fuzzy system is proposed for solving the problem of the phonemes that are prone to multi-definitions in rule-based speech synthesis. In the introductory section, we briefly present the background of the problem and our previous results in speech synthesis. In the second section, we deal with the problem of the context-dependent phonemes at the letter-to-sound module level of our TTS system. Then, we discuss the case of the phoneme /l/ and the solution adopted to define it for different contexts. A fuzzy system is associated with each parameter (denoted F1 and F2) to implement the results of the complete analysis of the phoneme /l/ behavior. The knowledge used in implementing the fuzzy module is acquired by natural speech analysis. In the third section, we exemplify the computation of the synthesis parameters F1 and F2 of the phoneme /l/ in the context of the two syllable sequences. The parameter values are contrasted with those obtained from the spectrogram analysis of the natural speech sequences. The last section presents the main conclusions and further research objectives.

An international initiative group from the academic realm has established a biannual scientific journal, whose profile is focused on the theory of art and visual communication. We publish articles written in English, French, Spanish. Articles submitted for publication are subject to a peer-review process of evaluation.

An international initiative group from the academic realm has established a biannual scientific journal, whose profile is focused on the theory of art and visual communication. We publish articles written in English, French, Spanish. Articles submitted for publication are subject to a peer-review process of evaluation.