MUMBAI, India, June 27 -- Intellectual Property India has published a patent application (202548057850 A) filed by Dolby Laboratories Licensing Corporation; and Dolby International AB, San Francisco, on June 16, for 'systems, methods and apparatus for conversion from channel-based audio to object-based audio.'
Inventor(s) include Ward, Michael C; Sanchez, Freddie; and Fersch, Christof.
The application for the patent was published on June 27, under issue no. 26/2025.
According to the abstract released by the Intellectual Property India: "Embodiments are disclosed for channel-based audio (CBA) (e.g., 22.2-ch audio) to object- based audio (OBA) conversion. The conversion includes converting CBA metadata to object audio metadata (OAMD) and reordering the CBA channels based on channel shuffle information derived in accordance with channel ordering constraints of the OAMD. The OBA with reordered channels is rendered in a playback device using the OAMD or in a source device, such as a set-top box or audio/video recorder. In an embodiment, the CBA metadata includes signaling that indicates a specific OAMD representation to be used in the conversion of the metadata. In an embodiment, pre-computed OAMD is transmitted in a native audio bitstream (e.g., AAC) for transmission (e.g., over HDMI) or for rendering in a source device. In an embodiment, pre-computed OAMD is transmitted in a transport layer bitstream (e.g., ISO BMFF, MPEG4 audio bitstream) to a playback device or source device."
The patent application was internationally filed on Dec. 02, 2020, under International application No.PCT/US2020/062873.
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