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摘要

P To provide a system, a method and etc., for incorporating watermark information into a synthesized speech. PSOLUTION: The speech synthesis system for generating an artificial speech is equipped with a pitch mark generation part 11 which generates a pitch mark prescribing the pitch of a speech, a speech phoneme selection part 12 which selects a phoneme from a phoneme dictionary according to a vocal sound symbol, an amplitude correction part 14 which imparts code data as watermark information as correction of amplitude to speech waveform data outputted from the phoneme selection part and a waveform superposition part 15 which superposes the waveform of a sound signal including the phoneme corrected by the amplitude correction part according to the pitch mark of the pitch mark generation part output. PCOPYRIGHT: (C)2004 and JPO