Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data

A computer-implemented method of transmitting digital multimedia broadcasting data, the method comprising:

• encoding a basic audio signal and a multichannel audio signal to generate a basic audio stream and a multichannel audio stream;
• generating a first data stream describing property and position data of the basic audio stream and a second data stream describing property and position data of the multichannel audio stream;
• and
• packetizing, multiplexing, and transmitting the basic audio stream, the multichannel audio stream, the first data stream, and the second data stream,
• wherein the first data stream comprises a first elementary stream descriptor (ESD) regarding the basic audio stream and the second data stream comprises a second ESD regarding the multichannel audio stream, and
• wherein the first ESD and the second ESD are combined with each other to generate one object descriptor regarding a single audio object.

A receiving apparatus which receives digital multimedia broadcasting data, the apparatus comprising:

• a receiver which is configured to receive a transport stream and extract a first data stream describing property and position data of a basic audio stream and a second data stream describing property and position data of a multichannel audio stream by demultiplexing and depacketizing the transport stream;
• a data stream decoder which is configured to decode the first data stream and the second data stream to extract property and position data of the basic audio stream and property and position data of the multichannel audio stream;
• and
• an audio decoder which is configured to decode the basic audio stream and the multichannel audio stream by using the property and position data of the basic audio stream and the property and position data of the multichannel audio stream,
• wherein the first data stream comprises a first elementary stream descriptor (ESD) regarding the basic audio stream and the second data stream comprises a second ESD regarding the multichannel audio stream,
• wherein the first ESD and the second ESD are combined with each other to generate one object descriptor regarding a single audio object, and wherein the audio decoder, the data stream decoder, and the receiver are implemented using a physical processor and memory.

A computer-implemented method of receiving digital multimedia broadcasting data, the method comprising:

• extracting from a transport stream a first data stream describing property and position data of a basic stream and a second data stream describing property and position data of a multichannel audio stream by demultiplexing and depacketizing the transport stream;
• decoding the first data stream and the second data stream to extract property and position data of the basic audio stream and property and position data of the multichannel audio stream;
• and
• decoding the basic audio stream and the multichannel audio stream by using the property and position data of the basic audio stream and the property and position data of the multichannel audio stream,
• wherein the first data stream comprises a first elementary stream descriptor (ESD) regarding the basic audio stream and the second data stream comprises a second ESD regarding the multichannel audio stream, and
• wherein the first ESD and the second ESD are combined with each other to generate one object descriptor regarding a single audio object.