1. A prosody identifying apparatus for identifying input speech on the basis of prosodic features of the input speech, comprising: sound analyzing means for acquiring an amount of change in movement of a feature distribution obtained from an autocorrelation matrix of the frequency characteristic of the input speech; and identifying means for recognizing the input speech on the basis of an output of the sound analyzing means.
2. The prosody identifying apparatus according to claim 1 , wherein a time difference between median points of the feature distribution is utilized as the amount of change in movement of a feature distribution.