There are disclosed techniques, systems, methods and instructions for a virtual reality, VR, augmented reality, AR, mixed reality, MR, or 360-degree video environment.
In one example, the system includes at least one media video decoder configured to decode video signals from video streams for the representation of VR, AR, MR or 360-degree video environment scenes to a user. The system includes at least one audio decoder configured to decode audio signals from at least one audio stream. The system is configured to request at least one audio stream and/or one audio element of an audio stream and/or one adaptation set to a server on the basis of at least the user's current viewport and/or head orientation and/or movement data and/or interaction metadata and/or virtual positional data.