Locally silenced sound field forming apparatus and method
AssigneeSony Corporation
InventorsYu Maeno, Yuhki Mitsufuji
Life of this patent
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Abstract
The present technology relates to a locally silenced sound field forming apparatus and method capable of controlling a silenced area in a depth direction. The locally silenced sound field forming apparatus includes a first speaker array that outputs a sound on the basis of a first speaker drive signal to form a predetermined sound field, and a second speaker array arranged at a position different from the position of the first speaker array and that outputs a sound on the basis of a second speaker drive signal to form a sound field that cancels the predetermined sound field. The present technology can be applied to a locally silenced sound field forming apparatus.
Claims10
A locally silenced sound field forming apparatus, comprising:
- an acquisition unit configured to obtain information corresponding to a silenced area;
- a drive signal generation unit configured to generate a first speaker drive signal and a second speaker drive signal based on the information corresponding to the silenced area;
- a first speaker array configured to:
- output a first sound based on the first speaker drive signal;
- and
- form a first sound field based on the output first sound;
- and
- a second speaker array at a position different from a position of the first speaker array,
- wherein the second speaker array is configured to:
- output a second sound based on the second speaker drive signal;
- and
- form a second sound field based on the output second sound, wherein the second sound field cancels the first sound field in the silenced area.
A locally silenced sound field forming method, the method comprising:
- obtaining, by an acquisition unit of a locally silenced sound field forming apparatus, information corresponding to a silenced area;
- generating, by a drive signal generation unit of the locally silenced sound field forming apparatus, a first speaker drive signal and a second speaker drive signal based on the information corresponding to the silenced area;
- outputting, by a first speaker array of the locally silenced sound field forming apparatus, a first sound based on the first speaker drive signal;
- forming, by the first speaker array, a first sound field based on the output first sound;
- outputting, by a second speaker array of the locally silenced sound field forming apparatus, a second sound based on the second speaker drive signal;
- and
- forming, by the second speaker array, a second sound field based on the output second sound, wherein
- the second sound field cancels the first sound field in the silenced area, and
- a position of the second speaker array is different from a position of the first speaker array.
A non-transitory computer-readable medium having stored thereon computer-executable instructions, which when executed by a processor of a locally silenced sound field forming apparatus, cause the processor to execute operations, the operations comprising:
- obtaining information corresponding to a silenced area;
- generating a first speaker drive signal and a second speaker drive signal based on the information corresponding to the silenced area;
- outputting a first sound by a first speaker array of the locally silenced sound field forming apparatus based on the first speaker drive signal;
- forming a first sound field by the first speaker array based on the output first sound;
- outputting a second sound by a second speaker array of the locally silenced sound field forming apparatus based on the second speaker drive signal;
- and
- forming a second sound field by the second speaker array based on the output second sound, wherein
- the second sound field cancels the first sound field in the silenced area, and
- a position of the second speaker array is different from a position of the first speaker array.
Dependencies are inferred from the claim text.