| 摘要 |
PROBLEM TO BE SOLVED: To provide a speech synthesis device which is capable of easily determining a spectral emphasis characteristic considering to cope with a frequency characteristic and acoustic feeling and has also a high degree of freedom when setting the characteristics. SOLUTION: This device sends a synthesized speech signal obtained by synthesizing exciting signals ex(n) through a synthesis filter 12 to a spectrum emphasis filter 13 and outputs it with the spectrum emphasized. A vocal tube parameter from an input terminal 21 is transformed into LSP(Line Spectrum Pair) frequency in a parameter transformation circuit 23, and is interpolated between an equal interval line spectrum and frequency in a LSP interpolation circuit 24, and a transfer function of the spectrum emphasis filter 13 is determined based on the interpolated LSP frequency. |
