Method and apparatus for transmitting and receiving of the object-based audio contents

A method comprising:

• receiving packetized object-based digital audio contents;
• depacketizing the received packetized object-based digital audio contents;
• dividing the object-based digital audio contents into respective (elementary streams (ESs);
• decoding the respective divided ESs;
• and
• replaying the respective decoded ESs, wherein the dividing of the received object packet comprises obtaining common information of the ESs of the object packet from a multi-object packet header of the object packet, and obtaining information of the respective ESs excluding the common information from each packet header of corresponding ESs, and wherein the common information comprises at least one of a length of an entire packet, a type of a common ES, and replay time information.

An apparatus for transmitting object-based digital audio contents comprising:

• a filter to filter respective input elementary streams (ESs) according to common information;
• an ES packetizer to packetize the filtered ESs into respective ES packets;
• a multi-object packetizer to accumulate the ES packets and packetize the accumulated ES packets into an object packet;
• and
• a transmitter to transmit the object packet after multiplexing the object packet and packetizing the multiplexed object packet according to a transmitting media, wherein the common information comprises at least one of a length of an entire packet, a type of a common ES, and replay time information.

An apparatus for receiving object-based digital audio contents comprising:

• a depacketizer to receive an object packet having a plurality of elementary streams (ESs) and to divide the received object packet into respective Ess;
• an ES decoder to decode the respective ESs;
• and
• a replayer to replay the respective decoded ESs, wherein the depacketizer obtains common information of the ESs of the object packet from a multi-object packet header of the object packet, and obtains information of the respective ESs excluding the common information from each packet header of corresponding ESs, wherein the common information comprises at least one of a length of an entire packet, a type of a common ES. and replay time information.