APPARATUS AND METHOD FOR ENCODING AND DECODING SIGNAL

摘要

An encoding/decoding apparatus and a method thereof are provided to encode/decode a signal at an optimum bit rate. A plurality of signals encoded from an input bit stream and division information of the signals are extracted. A decoding method of a signal among a plurality of decoding methods is determined with regard to encoded signals. The signals are decoded according to the determined decoding method. The decoded signals are synthesized by using the extracted division information. The division information includes information with regard to the number of signals and a frequency band.