| 摘要 |
<P>PROBLEM TO BE SOLVED: To generate a speech waveform at a high speed. <P>SOLUTION: A first storage part stores n band noise signals obtained by applying n band pass filters to a noise signal. A second storage part stores n band pulse signals obtained by applying the n band pass filters to a pulse signal. A parameter input unit inputs a fundamental frequency, n band noise intensities, and a spectrum parameter. An extraction section extracts the n band noise signals while shifting them for each pitch mark. An amplitude control part changes the amplitude of an extracted band noise signal and the amplitude of the band pulse signal according to the band noise intensity. A generation part generates mixed sound source signals obtained by adding the n band noise signals and the n band pulse signals. A superimposition part superimposes the mixed sound source signals generated based on the pitch mark. A vocal tract filter part generates speech waveforms by applying the vocal tract filter using the spectrum parameter to the superimposed mixed sound source signals. <P>COPYRIGHT: (C)2012,JPO&INPIT |
