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

摘要

An apparatus and a method for decoding an object-based audio signal, and a method for encoding the audio signal are provided to locate audio images according to respective object audio signals, thereby offering vivid reality when reproducing the object audio signals. A decoding apparatus receives a bit stream transmitted from an encoding apparatus(S170). A de-multiplexer extracts a down-mix signal and object-based parameter information from the bit stream(S172). An object decoder generates an object audio signal by using the down-mix signal and the object-based parameter information(S174). A render draws out 3D information from a 3D information database by using index data included in control data for defining locations of object signals(S176). The render performs a 3D rendering process by using the object audio signal outputted from an object decoder and the 3D information drawn out from the 3D information database(S178).