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US 12,587,805 B2Granted
Sound-field control method and device, electronic device and computer-readable storage medium
AssigneeAAC Technologies (Nanjing) Co., Ltd.
InventorsNan Cao, Lijian Ye, Hongxing Wang
Life of this patent
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Abstract
This application provides a sound-field control method and device, an electronic device and a computer-readable storage medium. The method includes: obtaining a target sound field parameter, calculating a control parameter of a sound-generating device according to the target sound field parameter, and controlling operation of the sound-generating device according to the control parameter.
Claims7
A sound-field control method applied to an electronic device, the electronic device comprising a sound-generating device, and the sound-field control method comprising:
- obtaining a target sound field parameter, wherein the target sound field parameter comprises an acoustic characteristic parameter of a target area;
- calculating a control parameter of the sound-generating device according to the target sound field parameter;
- and
- controlling operation of the sound-generating device according to the control parameter;
- wherein a controllable area of the electronic device comprises a plurality of preset areas;
- and
- the step of “obtaining a target sound field parameter” comprises:
- obtaining location information of a target user;
- determining the target area from the plurality of preset areas according to the location information;
- and
- determining the target sound field parameter according to a target control point corresponding to the target area;
- wherein the sound-generating device comprises one or more sound-generating units;
- and the control parameter of the sound-generating device comprises a target control parameter of each of the one or more sound-generating units;
- and
- the step of “calculating a control parameter of the sound-generating device according to the target sound field parameter” comprises:
- according to a preset constraint condition, inputting the target sound field parameter into a preset calculation formula to find an optimal solution to obtain the target control parameter of a target sound-generating unit in the sound-generating device;
- wherein the preset calculation formula is expressed as:
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- wherein F indicates an objective function;
- Hi1 indicates a target sound field parameter of an ith target control point;
- Hij2 indicates a rated sound field parameter of a jth sound-generating unit when operating at the ith target control point;
- Hjc indicates a control parameter of the ith sound-generating unit;
- Alimit indicates a maximum amplitude of the sound-generating device;
- ai indicates a weight of each of target control points;
- N indicates the number of the target control points;
- and M indicates the number of the one or more sound-generating units.
70 more elements
Dependencies are inferred from the claim text.