Patent ID: 8639368

Claim:
A method of processing an audio signal, comprising: receiving a downmix signal and a first information, the downmix signal including at least one object, and the first information including object information, preset information and preset attribute information, the object information indicating an attribute of the object and including object number information, the preset information being used adjust a level or panning of the at least one object, the preset attribute information indicating whether the preset information is applied to a data region or all data regions of the downmix signal, wherein the object number information indicates a number of the at least one object; receiving a second information, the second information including external preset information and applied object number information, the external preset information being inputted externally and including external preset rendering parameter and external preset metadata, and the applied object number information indicating the number of objects to which the external preset information is being applied; and rendering the downmix signal by using the external preset information based on the applied object number information or rendering the downmix signal by applying the preset information based on the preset attribute information, wherein the external preset rendering parameter renders the object being included in the downmix signal and the external preset metadata indicates an attribute of the external preset rendering parameter, wherein the preset information is included in a configuration information region or the preset information is included in a data region, wherein if the preset information is included in the configuration information region, the preset information is applied to all corresponding data regions, and wherein if the preset information is included in the data region, the preset information is applied to a corresponding data region.