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This paper presents the design and development of syllable specific unit selection cost functions for improving the quality of text-to-speech synthesis. Appropriate unit selection cost functions, namely concatenation cost and target cost, are proposed for syllable based synthesis. Concatenation costs are defined based on the type of segments present at the(More)
This paper proposes a new approach of modeling the ex-citation signal as deterministic and noise components. Initially , a study on characteristics of excitation or residual signal around glottal closure instant (GCI) is performed using principal component analysis (PCA). Based on the study, the segment of residual signal around GCI is considered as the(More)