| 摘要 |
PURPOSE: To remove a measuring error by measuring an adaptive value indicating whether a speech parameter selection value is adaptive to a speech signal in a relative time section or not. CONSTITUTION: In the method for determining change of a speech parameter such as a pitch in a speech signal, optimum sum values and connection vectors for many speech parameters fj at respective points (i) of time are calculated by using optimizing algorithm. An optimum value, i.e., a minimum or maximum value, for an optimum sum value at the final point of time is determined. Since the connection vector is used, a change in the speech parameter to be a time function can be obtained by back tracking. Consequently, a measuring error can be removed. |
