Object-based three-dimensional audio system and method of controlling the same

A method of controlling an object-based 3-D audio server system comprising:

• separating sound source objects from among sound sources according to a selection by a user;
• inputting 3-D information for each sound source object separated from the applied sound sources;
• mixing sound sources other than the separated sound source objects into background sounds;
• and
• forming the sound source objects, the 3-D information, and the background sound objects into an audio scene, and encoding and multiplexing the audio scene to transmit the encoded and multiplexed audio signal through a medium.

An object-based three-dimensional audio terminal system comprising:

• an audio decoding unit demultiplexing and decoding a multiplexed audio signal including object sounds, background sounds, and scene information applied through a medium;
• an audio scene-synthesizing unit selectively synthesizing the object sounds with the audio scene information decoded by the audio decoding unit into a 3-D audio scene under the control of a user;
• a user control unit providing a user interface so as to selectively synthesize the audio scene by the audio scene synthesizing unit under the control of the user;
• and
• an audio reproducing unit reproducing the 3-D audio scene synthesized by the audio scene-synthesizing unit.

A method of controlling an object-based 3-D audio terminal system comprising:

• in receiving and outputting an object-based 3-D audio signal, decoding the audio signal applied through a medium, and dividing the audio signal into object sounds, 3-D information, and background sounds;
• performing motion processing, group object processing, 3-D sound localization, and 3-D space modeling on the object sounds and the 3-D information to modify and apply the processed object sounds and 3-D information according to a user's selection, and mixing them with the background sounds;
• and
• equalizing the mixed audio signal in response to correction of characteristics of the acoustic environment that the user controls, and outputting the equalized signal.

An object-based three-dimensional audio system comprising:

• an audio input unit receiving object-based sound sources through input devices;
• an audio editing/producing unit separating the sound sources applied through the audio input unit into object sounds and background sounds according to a user's selection, and converting them into three-dimensional audio objects;
• an audio encoding unit encoding 3-D information of the audio objects and object signals converted by the audio editing/producing unit to transmit them through a medium;
• an audio decoding unit receiving the audio signal including object sounds and 3-D information encoded by the audio encoding unit through the medium, and decoding the audio signal;
• an audio scene synthesizing unit selectively synthesizing the object sounds with 3-D information decoded by the audio decoding unit into a 3-D audio scene under the control of a user;
• a user control unit outputting a control signal according to the user's selection so as to selectively synthesize the audio scene by the audio scene synthesizing unit under the control of the user;
• and
• an audio reproducing unit reproducing the audio scene synthesized by the audio scene synthesizing unit.

A method of controlling an object-based 3-D audio terminal system, comprising:

• separating sound source objects from among sound sources according to a selection by a user;
• inputting 3-D information on the separated sound source objects;
• processing sound sources other than the input sound source objects and 3-D information as background sounds;
• forming the sound source objects, the 3-D information, and the background sounds into an audio scene, and encoding and multiplexing the audio scene to transmit the encoded and multiplexed audio scene through a medium;
• decoding the audio signal applied through a medium, and dividing the audio signal into object sounds, 3-D information, and background sounds;
• performing motion processing, group object processing, 3-D sound localization, and 3-D space modeling with respect to the object sounds and the 3-D information to modify and apply the processed object sounds and 3-D information according to a user's selection, and mixing them with the background sounds;
• and
• equalizing the mixed audio signal in response to correction of characteristics of the acoustic environment that the user controls, and outputting the equalized audio signal.