SIGNAL ENCODING DEVICE AND SIGNAL ENCODING METHOD, SIGNAL DECODING DEVICE AND SIGNAL DECODING METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

A signal encoding device for encoding an input time-series signal includes: partitioning means; low-frequency encoding means; high-frequency gain information generating means; low-frequency reference value information generating means; high-frequency gain difference information generating means; high-frequency gain difference information encoding means; and multiplexing means.