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 AND ONE OR MORE SCENE UPDATE PACKETS WITH OF ONE OR MORE UPDATE CONDITIONS

Embodiments create an audio decoder which receives a plurality of packets of different packet types, having one or more scene configuration packets providing renderer configuration information defining a usage of scene objects and/or of scene characteristics, having one or more scene update packets defining a update of scene metadata for the rendering, and having one or more scene payload packets having definitions of one or more of the scene objects and/or of one or more of the scene characteristics; selects definitions of one or more scene objects and/or of one or more scene characteristics, included in the scene payload packets, for rendering in dependence on the renderer configuration information; and updates one or more scene metadata in dependence on a content of the one or more scene update packets. Further embodiments create encoders, methods and bitstreams. Further embodiments create 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.