METHOD AND APPARATUS FOR ENCODING/DECODING AN AUDIO SIGNAL

摘要

A method and an apparatus for encoding/decoding an audio signal are provided to encode and transmit a pilot value and a pilot difference value in a data set to be processed in a time and a frequency, decode the pilot value and the pilot difference value, and process the audio signal effectively. A space information generating unit(103) generates space information from a multi-channel audio signal. A space information coding unit(120) generates a pilot value and a pilot difference value of the space information, performs the primary entropy coding of the pilot value, and performs one of the primary entropy coding and the secondary entropy coding of the pilot difference value according to a coding scheme.