Patent ID: 7389231
Filing Date: 2008-06-17
Classification: G10L

Abstract:
1. A voice synthesizing apparatus for synthesizing a voice with vibrato in accordance with input information, said apparatus comprising: a storage device that stores a first database, a second database and a third database, wherein said first database stores a first EpR parameter in each phoneme, which is obtained by resolving a spectrum envelope of harmonic components obtained by analyzing a voice, wherein said a second database stores a second EpR parameter obtained by analyzing a voice with vibrato, wherein said third database stores a template indicative of time sequential changes of an EpR parameter, and wherein each of said first and second EpR parameters includes an envelope of excitation waveform spectrum, excitation resonances, formants and a differential spectrum; an input device that inputs voice information including information for specifying a pitch, dynamics, and phoneme of an output voice to be synthesized and a control parameter for adding vibrato to the output voice to be synthesized; a generating device that reads out the first EpR parameter and the template from the storage device in accordance with the input voice information and applies the read-out template to the read-out first EpR parameter in order to generate a third EpR parameter; a vibrato adding device that reads out the second EpR parameter from the storage device in accordance with the control parameter, calculates an additional value based on the second EpR parameter and adds the calculated additional value to the third EpR parameter; and a synthesizing device that synthesizes the output voice with vibrato in accordance with the voice information and the third EpR parameter to which the calculated additional value is added.