Spatial audio signal processing for objects with associated audio content
First Claim
Patent Images
1. A user device for generating a scene, the user device comprising:
- at least one image capturing device configured to capture video of an area within a field of view of a user wearing the user device, the user device being a head-mountable device;
an object determiner configured to determine a virtual object for the scene, the virtual object being associated with at least one audio signal, the scene being a shared mixed-reality scene environment representing the captured video of the area within the field of view of the user wearing the user device combined with the virtual object;
one or more components configured to communicate the shared mixed-reality scene environment to a device of at least one additional user over a communications network, the shared mixed-reality scene environment enabling one or more of a functional attribute or a positional attribute of the virtual object to be controlled by the user and the at least one additional user;
a relative position/orientation determiner configured to;
determine a relative object position and orientation of the virtual object relative to a device position and orientation of the user device;
determine over a determined time period a change in the relative object position and orientation;
determine that the virtual object has moved outside the field of view based on the change in the relative object position and orientation being greater than a determined threshold value; and
generate a smoothed relative object position and orientation outside the field of view as the relative object position and orientation based on a determination that the virtual object has moved outside the field of view; and
an audio position processor configured to spatially audio signal process the at least one audio signal to generate at least a two channel audio signal based on the relative object position and orientation.
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Abstract
A user device for generating a scene, the user device comprising: an object determiner configured to determine an object for the scene, the object being associated with at least one audio signal; a relative position/orientation determiner configured to determine a relative position/orientation between the user device'"'"'s user and the object; an audio position processor configured to spatially audio signal process the at least one audio signal to generate at least two channel audio signal based on the relative position/orientation.
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Citations
20 Claims
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1. A user device for generating a scene, the user device comprising:
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at least one image capturing device configured to capture video of an area within a field of view of a user wearing the user device, the user device being a head-mountable device; an object determiner configured to determine a virtual object for the scene, the virtual object being associated with at least one audio signal, the scene being a shared mixed-reality scene environment representing the captured video of the area within the field of view of the user wearing the user device combined with the virtual object; one or more components configured to communicate the shared mixed-reality scene environment to a device of at least one additional user over a communications network, the shared mixed-reality scene environment enabling one or more of a functional attribute or a positional attribute of the virtual object to be controlled by the user and the at least one additional user; a relative position/orientation determiner configured to; determine a relative object position and orientation of the virtual object relative to a device position and orientation of the user device; determine over a determined time period a change in the relative object position and orientation; determine that the virtual object has moved outside the field of view based on the change in the relative object position and orientation being greater than a determined threshold value; and generate a smoothed relative object position and orientation outside the field of view as the relative object position and orientation based on a determination that the virtual object has moved outside the field of view; and an audio position processor configured to spatially audio signal process the at least one audio signal to generate at least a two channel audio signal based on the relative object position and orientation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method implemented at a user device for generating a scene, the method comprising:
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capturing video of an area within a field of view of a user wearing the user device, the user device being a head-mountable device; determining a virtual object for the scene, the virtual object being associated with at least one audio signal, the scene being a shared mixed-reality scene environment representing the captured video of the area within the field of view of the user wearing the user device combined with the virtual object; communicating the shared mixed-reality scene environment with a device of at least one additional user over a communications network, the shared mixed-reality scene environment enabling one or more of a functional attribute or a positional attribute of the virtual object to be controlled by the user and the at least one additional user; determining a spatial relationship between a user of the user device and the virtual object; spatially audio signal processing the at least one audio signal to generate at least a two channel audio signal based on the spatial relationship; determining over a determined time period a change in the spatial relationship; determining that the virtual object has moved outside the field of view based on the change in the spatial relationship being greater than a threshold value; and generating one or more smoothed relative values representing a relative position and orientation of the virtual object outside the field of view based on a determination that the virtual object has moved outside the field of view, the relative position and orientation usable for the spatially audio signal processing of the at least one audio signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A computer-readable hardware device comprising a memory storing instructions that are executable by one or more processors of a user device to cause the one or more processors to perform operations for generating a scene, the operations comprising:
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capturing video of an area within a field of view of a user wearing the user device, the user device being a head-mountable device; determining a virtual object for the scene, the virtual object being associated with at least one audio signal, the scene being a shared mixed-reality scene environment representing the captured video of the area within the field of view of the user wearing the user device combined with the virtual object; determining a relative object position and orientation of the virtual object relative to a device position and orientation of the user device, the relative object position determined to be located within the field of view of the user; spatially audio signal processing the at least one audio signal to generate at least a two channel audio signal based on the relative object position and orientation; determining that the virtual object has moved outside the field of view based on a change in the relative object position and orientation being greater than a determined threshold value over a determined period of time; and generating a smoothed relative object position and orientation outside the field of view as the relative object position and orientation based on a determination that the virtual object has moved outside the field of view, the smoothed relative object position and orientation usable in the spatially audio signal processing of the at least one audio signal. - View Dependent Claims (17, 18, 19, 20)
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Specification