Method and apparatus for generation and playback of object based audio contents

An apparatus for playback of object based audio contents, comprising:

• a decoding unit to decode, from the object based audio contents, a plurality of audio objects, a plurality of third preset IDs, and a plurality of audio presets indicated by the plurality of third preset IDs, the audio preset including information about an object attribute of each of the plurality of audio objects;
• an interface unit to provide at least one fourth preset ID to a user, and to receive a single fourth preset ID among the at least one fourth preset ID from the user, the at least one fourth preset ID being predetermined;
• a preset selecting unit to select an audio preset indicated by a third preset ID corresponding to the received single fourth preset ID from among the decoded plurality of audio presets, when the third preset ID corresponding to the received single fourth preset ID exists among the decoded plurality of third preset IDs;
• and
• a playback unit to perform playback of the object based audio contents by rendering the plurality of audio objects based on the information about the object attribute of each of the plurality of audio objects included in the selected audio preset.

A method of generating object based audio contents, comprising:

• storing at least one first audio preset and a first preset ID of the at least one first audio preset in a database;
• generating an audio preset including information about an object attribute of each of a plurality of audio objects constituting the audio contents;
• setting a preset ID of the generated audio preset;
• and
• generating the object based audio contents by encoding the plurality of audio objects, the audio preset, and the preset ID,
• wherein, when a reference audio preset corresponding to the generated audio preset exists in the database, a reference preset ID of the corresponding reference audio preset is set as a preset ID of the generated audio preset.

A method for playback of object based audio contents, comprising:

• decoding, from the object based audio contents, a plurality of audio objects, a plurality of third preset IDs, and a plurality of audio presets indicated by the plurality of third preset IDs, the audio preset including information about an object attribute of each of the plurality of audio objects;
• providing at least one fourth preset ID to a user and receiving a single fourth preset ID among the at least one fourth preset ID from the user, the at least one fourth preset ID being predetermined;
• selecting an audio preset indicated by a third preset ID corresponding to the received single fourth preset ID from among the decoded plurality of audio presets, when the third preset ID corresponding to the received single fourth preset ID exists among the decoded plurality of third preset IDs;
• and
• performing playback of the object based audio contents by rendering the plurality of audio objects based on the information about the object attribute of each of the plurality of audio objects included in the selected audio preset.