US 2020/0221249 A1Published application

Method, Apparatus or Systems for Processing Audio Objects

AssigneesDolby Laboratories Licensing Corporation, Dolby International AB

InventorsDirk Jeroen BREEBAART, Lie LU, Nicolas R. TSINGOS, Antonio MATEOS SOLE

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Abstract

Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker locations. The output of such a rendering process may be input to a scene simplification process. The decorrelation, associating and/or scene simplification processes may be performed prior to a process of encoding the audio data.

Claims21

Dependent claims

A method, comprising:

receiving audio data comprising at least one audio object, wherein the audio data includes at least an audio signal associated with the at least one audio object and audio object metadata associated with the at least one audio object, wherein the metadata includes a flag relating to size of the at least one audio object, and wherein the metadata further includes additional metadata at least one of audio object position data, audio object gain data, audio object size data, audio object trajectory data, and speaker zone constraint data;
determining based on the flag that the size of the at least one audio object is greater than a threshold size value;
performing decorrelation filtering on the at least one audio object to determine decorrelated audio object audio signals;
and
mixing the decorrelated audio object audio signals with the at least an audio signal to determine a mixed audio signal for rendering, wherein the mixed audio signal is further based on the additional metadata.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/820,769Filed 17 Mar 2020
Priority: ES P20133119331 Jul 2013
Published: 9 Jul 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04S 7/308
Control circuits for electronic adaptation of the sound field: electronic adaptation dependent on speaker or headphone connection
G10L 19/00
Speech or audio signals analysis-synthesis techniques for redundancy reduction
G10L 19/008
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals,…:…
G10L 19/018
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals,…:…

Family

Application61/885,805Us provisional application · filed 2 Oct 2013
Application14/909,058Division · filed 29 Jan 2016
Application15/490,613Continuation · filed 18 Apr 2017
Application16/009,164Division · filed 14 Jun 2018
Application16/820,769Division
Application16/009,164Continuation
Application15/490,613Division
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US 2020/0221249 A1This patent

From the US filing history. Foreign family members aren’t listed.

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