Processing object-based audio signals
First Claim
1. A method of processing an audio signal, the audio signal having a plurality of audio objects, the method comprising:
- receiving spatial metadata corresponding to the audio objects;
converting the audio signal into submixes of the audio objects of the audio signal, wherein each submix relates to rendering constraints of corresponding audio objects of the plurality of audio objects;
determining a corresponding submix gain for each of the submixes; and
rendering each of the submixes of the audio objects, wherein the rendering includes rendering each of the corresponding audio of the submix based on the rendering constraints, the spatial metadata, and the submix gain corresponding to the submix of the corresponding audio objects.
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Abstract
An audio processing system and method which calculates, based on spatial metadata of the audio object, a panning coefficient for each of the audio objects in relation to each of a plurality of predefined channel coverage zones. Converts the audio signal into submixes in relation to the predefined channel coverage zones based on the calculated panning coefficients and the audio objects. Each of the submixes indicating a sum of components of the plurality of the audio objects in relation to one of the predefined channel coverage zones. Generating a submix gain by applying an audio processing to each of the submix and controls an object gain applied to each of the audio objects. The object gain being as a function of the panning coefficients for each of the audio objects and the submix gains in relation to each of the predefined channel coverage zones.
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Citations
9 Claims
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1. A method of processing an audio signal, the audio signal having a plurality of audio objects, the method comprising:
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receiving spatial metadata corresponding to the audio objects; converting the audio signal into submixes of the audio objects of the audio signal, wherein each submix relates to rendering constraints of corresponding audio objects of the plurality of audio objects; determining a corresponding submix gain for each of the submixes; and rendering each of the submixes of the audio objects, wherein the rendering includes rendering each of the corresponding audio of the submix based on the rendering constraints, the spatial metadata, and the submix gain corresponding to the submix of the corresponding audio objects. - View Dependent Claims (2, 3, 4, 5)
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6. A system for processing an audio signal, the audio signal having a plurality of audio objects, the system comprising:
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a receiver for receiving spatial metadata corresponding to the audio objects; a converter for converting the audio signal into submixes of the audio objects of the audio signal, wherein each submix relates to rendering constraints of corresponding audio objects of the plurality of audio objects; a processor for determining a corresponding submix gain for each of the submixes; and a renderer for rendering each of the submixes of the audio objects, wherein the rendering includes rendering each of the corresponding audio of the submix based on the rendering constraints the spatial metadata, and the submix gain corresponding to the submix of the corresponding audio objects. - View Dependent Claims (7, 8, 9)
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Specification