| 摘要 |
PURPOSE:To obtain a smooth voice by executing the interpolation of respective parameters at every tone element, which is sectioned to respective rising, normal and falling periods, allowing energy gradually to be lowered in the normal period, operating a current value when the signal of a sound source is supplied to an acoustic tube model and synthesizing the sound. CONSTITUTION:For data to be obtained in voice processing parts 3 and 4, interpolating operation is executed concerning the respective parameters at every tone element which is sectioned to the respective rising, normal and falling periods. As a result, an executing parameter is determined to allow the energy of the tone element to rise up during the rising period concerning input character data, and after that, to allow the energy to be lowered gradually during the normal period. Then, based on this executing parameter, the signal of a sound source P is supplied to an acoustic tube equivalent circuit 8 and a current value flowing at such a time is operated in an arithmetic part 9 by a timing to be matched to a speed, at which the current proceeds. When an operating output is D/A converted and supplied to a speaker 11, a voice synthesizing signal to correspond to the input character data can be obtained. Thus, a smooth voice can be obtained. |
