AUDIO DECODER, AUDIO ENCODER, METHOD FOR DECODING, METHOD FOR ENCODING AND BITSTREAM, USING A PLURALITY OF PACKETS, THE PACKETS COMPRISING ONE OR MORE SCENE CONFIGURATION PACKETS DEFINING A TEMPORAL EVOLUTION OF A RENDERING SCENARIO AND COMPRISING A TIMESTAMP INFORMATION

Embodiments according to the invention are related to an audio decoder, for providing a decoded audio representation on the basis of an encoded audio representation, wherein the audio decoder is configured to spatially render one or more audio signals; wherein the audio decoder is configured to receive a plurality of packets of different packet types, the packets comprising one or more scene configuration packets providing a renderer configuration information defining a usage of scene objects and/or a usage of scene characteristics, the packets comprising one or more scene update packets defining a update of scene metadata for the rendering, the packets comprising one or more scene pay toad packets comprising definitions of one or more of the scene objects and/or definitions of one or more of the scene characteristics; wherein the audio decoder is configured to select definitions of one or more scene objects and/or definitions of one or more scene characteristics, which are in included in the scene payload packets, for the rendering in dependence on the renderer configuration information; and wherein the audio decoder is configured to update one or more scene metadata in dependence on a content of the one or more scene update packets. Further embodiments are related to encoders, methods and bitstreams. Further embodiments are related to decoders, encoders, methods and bitstreams with scene update packets with update conditions, with scene configuration packets providing a renderer configuration information defining a temporal evolution of a rendering scenario and with a timestamp information and/or with subscene cell information, wherein the cell information defines an association between the one or more cells and respective one or more data structures. Des modes de réalisation selon l'invention concernent un décodeur audio, destiné à fournir une représentation audio décodée sur la base d'une représentation audio codée, le décodeur audio étant configuré pour restituer spatialement un ou plusieurs signaux audio ; le décodeur audio étant configuré pour recevoir une pluralité de paquets de différents types de paquets, les paquets comprenant un ou plusieurs paquets de configuration de scène fournissant des informations de configuration de moteur de rendu définissant une utilisation d'objets de scène et/ou une utilisation de caractéristiques de scène, les paquets comprenant un ou plusieurs paquets de mise à jour de scène définissant une mise à jour de métadonné