| 摘要 |
PROBLEM TO BE SOLVED: To provide an encoding method for a sound signal which can process even a sound signal consisting of a plurality of channels like a stereophonic sound signal with an operation load nearly as large as that of a sound signal consisting of one channel like a monaural sound signal and can suppress an encoded data amount. SOLUTION: A plurality of unit sections are set on the time base (S1a, S1b) for a sound signal consisting of two right and left channels and frequency analyses are taken by the unit sections to compute phoneme data consisting of frequencies, intensity value, section start times corresponding to the start points of the unit sections, and section end times corresponding to the end points of the unit sections (S2a, S2b); and all phoneme data obtained from the sound signals of both the channels are integrated between phoneme data of both the channels of the same time and the same frequency and integrated phoneme data to which an intensity ratio is added according to the intensity values of a plurality of phoneme data of the integration source are generated (S3). |
