Information encoding method and apparatus, information encoding method and apparatus, and information decoding method and apparatus

摘要

Objective The throughput is reduced at the time of coding and decoding, and the configuration is simplified and the cost is reduced.; Configuration When the input waveform signal is decomposed by the frequency component decomposition circuit and is encoded by the normalization, quantization circuit, and code string generation circuit, by limiting only a part of the band, for example, . Similarly, in the case of decoding, code string decoding processing, inverse quantization, denormalization processing, waveform signal synthesis processing, and the like are performed only in necessary bands.