Voice encoding device, voice decoding device, recording medium for recording program for realizing voice encoding /decoding and mobile communication device

摘要

The present invention intends to enhance a sound quality of a sound source generating portion in a CELP type voice encoding device and a CELP type voice decoding device. A pitch peak position of an adaptive code vector is obtained by a pitch peak position calculator a window for emphasizing an amplitude of the pitch peak position is prepared by an amplitude emphasizing window generator 13, and an amplitude of a noise code vector corresponding to the pitch peak position is emphasized by an amplitude emphasizing window unit 16.