TW275122B - Mandarin phonetic waveform synthesis method - Google Patents

Abstract

A mandarin phonetic waveform synthesizing method that could realize random modulation comprises: one phonetic synthesis unit database including sample data of Mandarin 1300 basic vocals and synthesized related baseperiod label and energy data in combination of baseperiod synchronous waveform, storing as basic data of Mandarin phonetic synthesis in file; one pre-processing unit including synthesis unit corresponding module, phone modification module and synthesis unit cut module, when we synthesize Mandarin sentence of specified phone, extracting needed synthesis unit from phonetic synthesis unit database, adjusting specified phone, and cutting synthesis unit into subunit of baseperiod synchronization; one kernel synthesis unit including baseperiod synchronization length calibration module, overlay adding synthesis module and waveform size reset module, reorganizing cut synthesis subunit according to modified phone and through rest to get synthesized Mandarin phonetic sample; one post spectrum modification unit including spectrum soothing module and baseband feature enhanced comb filter, modifying Mandarin phonetic sample completed by kernel synthesis unit on spectrum, making spectrum between syllables extend smooth and removing baseband characteristic of its original unit, making synthesized Mandarin phone with clear, fluent and natural features.