Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/43972
Title: A study of glottal excitation synthesizers for different voice qualities
Authors: Alonso, Jesús B. 
Ferrer, Miguel A. 
Henríquez, P. 
López-de-Ipina, Karmele
Cabrera, Josue
Travieso González, Carlos Manuel 
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: Speech synthesis and generationSpeech perception and psychoacousticsSpeech analysis
Issue Date: 2015
Publisher: 0925-2312
Journal: Neurocomputing 
Conference: IEEE 17th International Conference on Intelligent Engineering Systems (INES) 
Abstract: The aim of this paper is to analyze the improvements that are observed in the glottal excitation synthesizers when the possible manifestations of non-linear behavior are characterized in glottal excitation. This paper proposes a new model based on the modification of a classic glottal excitation synthesizer and to study the improvements regarding different glottal excitation synthesizers. The proposed model tries to improve the naturalness of the synthesized voice using the synthesis of the sub-harmonics. The proposed model is included in a generic synthesizer of sustained vowels in order to get an assessment about the quality of the synthesis of different qualities of voice, where speakers with pathologies in the phonatory system are used to simulate the behavior of low quality voices. The different models are adjusted using genetic algorithms. The assessment of the different glottal excitation synthesizers is obtained using an objective measure of similarity between the original signals and the synthesized signals based on temporal and spectral measurements. In addition, the quality of the proposed glottal excitation model is evaluated with a study of subjective perception.
URI: http://hdl.handle.net/10553/43972
ISSN: 0925-2312
DOI: 10.1016/j.neucom.2014.05.081
Source: Neurocomputing[ISSN 0925-2312],v. 150, p. 367-376
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