| 摘要 |
PURPOSE:To simplify the operation processing for generating an amplitude value pattern by bringing an amplitude value pattern of a composite unit to non-linear quantization, checking which point of each composite unit becomes a point pitch position at the time of generating an amplitude pattern at the time of synthesizing a rule, and normalizing and interpolating the amplitude parameter in its point. CONSTITUTION:At the time of bringing feature parameters of fundamental small units such as a syllable, a phoneme, a waveform of one pitch section, etc., which have been stored in a composite unit file, to rule synthesis by using the information of a character-string of a voice message and its meter, an amplitude value pattern of a composite unit is brought to non-linear quantization by a logarithmic function as shown in a figure (c), and at the time of generating an amplitude pattern, which point of each composite unit becomes a point pitch position is checked. Subsequently, an amplitude parameter of this point is normalized to '0', and by interpolating it, patterns as shown in figures (d), (e) are obtained. Thereafter, by adding each point and interpolating it by an exponential function, a pattern of (f) is obtained, and by compounding it, a desired amplitude value pattern as shown in (g) is obtained. |
