METHOD FOR ENCODING AND DECODING OBJECT-BASED AUDIO SIGNAL AND APPARATUS THEREOF

摘要

The present invention relates to a method for encoding and decoding object-based audio signal and an apparatus thereof. The audio decoding method includes extracting a first audio signal in which one or more music objects are grouped and encoded, a second audio signal in which at least two vocal objects are grouped step by step and encoded, and a residual signal cor¬ responding to the second audio signal, from an audio signal, and generating a third audio signal by employing at least one of the first and second audio signals and the residual signal. A multi¬ channel audio signal is then generated by employing the third audio signal. Accordingly, a variety of play modes can be provided efficiently.