Processing of Time-Varying Metadata for Lossless Resampling

摘要

Embodiments are directed to a method of representing spatial rendering metadata for processing in an object-based audio system that allows for lossless interpolation and/or re-sampling of the metadata. The method comprises time stamping the metadata to create metadata instances, and encoding an interpolation duration to with each metadata instance that specifies the time to reach a desired rendering state for the respective metadata instance. The re-sampling of metadata is useful for re-clocking metadata to an audio coder and for the editing audio content.

主权项

1. A method for representing time-varying rendering metadata in an object-based audio system, the time-varying rendering metadata specifying a desired rendering state that is derived from a metadata instance, the method comprising:
defining a time stamp indicating a point in time to begin a transition from a current rendering state to the desired rendering state; and specifying, in the metadata, an interpolation duration parameter indicating the required time to reach the desired rendering state.