Patent attributes
Disclosed herein is a voice processing apparatus for recognizing an input voice on the basis of a prosody characteristic of said voice, said voice processing apparatus including: voice acquisition means for acquiring said input voice; acoustic analysis means for finding a relative pitch change on the basis of a frequency-direction difference between a first frequency characteristic seen at each frame time of said input voice acquired by said voice acquisition means and a second frequency characteristic determined in advance; and prosody recognition means for carrying out a prosody recognition process on the basis of said relative pitch change found by said acoustic analysis means in order to produce a result of said prosody recognition process.
