| 摘要 |
The invention relates to a method, apparatus and memory means for evaluating the rhythmicity of a digital signal (200) composed of samples (204). The method comprises the following steps of: (102) setting the next period of the signal under examination; (104) finding local extreme values of the samples: (106) computing the temporal distance between each two adjoining extreme value samples in turn; (108) if at least two adjoining temporal distances differ from each other at most by a preset limit, the extreme value samples used for computing said temporal distances constitute a rhythmic series; (110) repeating the steps of the method until the whole signal has been examined. |
