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@TECHREPORT{Na_Idiap-RR-05-2013,
                      author = {Na, Xingyu and Garner, Philip N.},
                    keywords = {Pitch modelling, pitch target approximation, speech synthesis},
                    projects = {Idiap},
                       month = {3},
                       title = {Convolutional Pitch Target Approximation Model for Speech Synthesis},
                        type = {Idiap-RR},
                      number = {Idiap-RR-05-2013},
                        year = {2013},
                 institution = {Idiap},
                    abstract = {In this paper, we investigate pitch contour modelling in speech synthesis based on segmental units. A convolutional pitch target approximation model is proposed. This model allows jointly stochastic modelling of framewise pitch and pitch contour of longer units, of which the intuitive relations are revealed by a convolutional target approximation filter. The pitch contour is stylized by a linear representation called pitch target. In synthesis stage, the likelihood of the framewise model and the pitch target model are jointly maximized using a Toeplitz matrix representing the discrete convolutional filter.},
                         pdf = {https://publications.idiap.ch/attachments/reports/2013/Na_Idiap-RR-05-2013.pdf}
}