Method for Prosody Transition Modelling
Original Publication Date: 2002-Oct-21
Included in the Prior Art Database: 2003-Jun-21
Problem Solved: Prosody modelling plays an important role in a Text-to-speech(TTS) system in order to generate natural speech. Currently no matter a rule-based method or a statistical one, people try to model the prosody features for the synthesizing units, but not the correlations of them. While the prosody in many cases is a relative concept, for example, high energy or pitch for one syllable does not mean it is stressed, but only if it is higher than its neighbors. This disclosure gives out a method for prosody transition modelling, which can model the correlations of the synthsizing units, hence more natural and stable prosody. Novelty: A method to model the prosody transitions of synthesizing units. As a detail component of the above method, a detail pitch transition model at the junction of 2 voiced synthesizing units.