APPARATUS AND METHOD FOR CODING AND DECODING MULTI-OBJECT AUDIO SIGNAL WITH VARIOUS CHANNEL INCLUDING INFORMATION BITSTREAM CONVERSION

摘要

PURPOSE: An encoding and decoding apparatus of a multi-object audio signal and method thereof are provided to actively consume audio content according to user needs by effectively encoding or decoding multi-object audio content. CONSTITUTION: A preset generation unit(203) creates preset information for a multi-channel audio signal or an audio object signal. A representative bit stream generation unit(205) creates a representative bit stream. The representative bit stream includes the preset information generated by the preset generation unit and rendering information for the audio object signal, and rendering information for the multi-channel audio signal. [Reference numerals] (101) SAOC encoder; (103) Transcoder; (105) SAC decoder; (201) SAC encoder; (203) Preset ASI unit; (205) Bit stream generation unit; (AA,FF) Object 1; (BB,GG) Object 2; (CC) Object 3; (DD) Representative down mix signal; (EE) Output multi-channel audio signal; (HH) Object M; (II) Object N; (JJ) Down mix signal; (KK) SAC bit stream; (LL) Representative SAOC bit stream; (NN) Preset ASI bit stream; (OO) Representative SAC bit stream; (PP) Object control information; (QQ) Object control information playback system information