Study of a new synthesis method based on speech production model and RTLA model

A new method to synthesize formant targeted sounds based on speech production model and RTLA articula-tory synthesis model is studied.The synthesis model is implemented with scattering process derived from reflection-type line analog of vocal tract system according to the acoustic model of speech production.The vocal-tract area function which controls the synthesis model is derived from the first three formant trajectories using the inverse solution of speech production.The proposed method hot only gives good naturalness and dynamic smoothness,but also is capable to control or modify speech timbres easily and flexibly.Furthermore,it needs less number of control parameters and very low system sampling rate.