Sound field control device, sound field control system, sound field control method and program
The sound field control device optimizes local sound fields into internal and external components using speaker arrays and a baffle, addressing the occlusion issue and enabling accurate sound field control across multiple areas, including multilingual applications.
JP7804275B2Active Publication Date: 2026-01-22NAT INST OF INFORMATION & COMM TECH
Patent Information
- Application Number
- JP2022007150
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-07-26
- Filing Date
- 2022-01-20
- Publication Date
- 2026-01-22
- Estimated Expiration
- 2042-01-20
Smart Images
Figure 0007804275000043 
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Figure 0007804275000045
Abstract
To realize a sound field control system that solves an occlusion problem and performs appropriate sound field control for a plurality of local sound fields regardless of the sound wave traveling direction.SOLUTION: A sound field control system 1000 decomposes and optimizes multiple local sound fields into one global internal sound field and one global external sound field, and simultaneously reproduce the decomposed and optimized global internal sound field and global external sound field by using an internal sound field speaker array and an external sound field speaker array. Therefore, the sound field control system 1000 can solve an occlusion problem and perform appropriate sound field control for the plurality of local sound fields regardless of directions in which sound waves travel.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
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Sound field reproduction apparatus and method thereof
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