1. A method for generating parameters in a speech synthesis system, wherein the system comprises a parameter generation module operatively coupled to a speech synthesis module, using a continuous feature stream, for provided text for use in speech synthesis, comprising the steps of: a) partitioning, by the parameter generation module, said provided text into a sequence of phrases; b) generating, by the parameter generation module, parameters in a continuous approximation for said sequence of phrases using a speech model; and c) processing, by the parameter generation module, the generated parameters to obtain an other set of parameters, wherein said other set of parameters comprise at least one clamped delta value and wherein said other set of parameters are utilized in speech synthesis for provided text by the speech synthesis module.