System and Tools for Enhanced 3D Audio Authoring and Rendering

摘要

The invention is directed to a method, which comprises receiving audio reproduction data comprising one or more audio objects and metadata associated with each of the one or more audio objects; receiving reproduction environment data comprising an indication of a number of reproduction speakers in the reproduction environment and an indication of the location of each reproduction speaker within the reproduction environment; and rendering the audio objects into one or more speaker feed signals by applying an amplitude panning process to each audio object, wherein the amplitude panning process is based, at least in part, on the metadata associated with each audio object and the location of each reproduction speaker within the reproduction environment, and wherein each speaker feed signal corresponds to at least one of the reproduction speakers within the reproduction environment. The metadata associated with each audio object includes audio object coordinates indicating the intended reproduction position of the audio object within the reproduction environment and a snap flag indicating whether the amplitude panning process should render the audio object into a single speaker feed signal or apply panning rules to render the audio object into a plurality of speaker feed signals. UC/ G 0o Q* 0 L.. _0' 2(n f0 0