3D Multi-Layer Speaker Control via 2D Projection
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Solution Overview
Problem
Existing three-dimensional multi-layer speaker arrangements face challenges in accurately positioning sound sources in space, particularly in recreating immersive three-dimensional sound experiences for audiences, as they often rely on complex calculations that are difficult to manage and integrate with varying speaker geometries and layer configurations.
Innovation Solution
A method and apparatus that divide the three-dimensional sound positioning into two-dimensional calculations for each speaker layer, using a two-dimensional calculator to determine layer-specific speaker coefficients and a multilayer calculator to obtain layer gain factors, allowing for simplified sound source positioning by projecting the three-dimensional source position into a two-dimensional plane and accounting for the geometrical setup of speakers and their relative positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex three-dimensional calculations are used for sound positioning, then positioning accuracy is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent divides the three-dimensional sound positioning calculation into separate two-dimensional calculations for each speaker layer. Each layer's speakers are positioned independently in 2D space, and the results are combined to achieve the overall 3D positioning effect. This segmentation reduces computational complexity while maintaining positioning accuracy.
Solution Approach 2:
The patent transforms the three-dimensional positioning problem into multiple two-dimensional problems by projecting the 3D sound source position onto each 2D speaker layer plane. This dimensionality reduction allows each layer to be calculated independently using simpler 2D algorithms, which are then integrated to produce the final 3D positioning result.
2Measurement precision
If complex three-dimensional calculations are used for sound positioning, then positioning accuracy is improved, but ease of operation worsens
Solution Approach 1:
The control system is divided into separate modules: a 3D position provider that defines the sound source location, and individual 2D calculators for each speaker layer. This modular segmentation makes the system easier to operate and control, as each component has a specific, simplified function while collectively achieving accurate 3D positioning.
Solution Approach 2:
By reducing the 3D positioning task to multiple 2D calculations, the system becomes more operationally simple. Each 2D calculator processes its layer independently based on simple geometric projections, making the overall system more manageable and easier to control while maintaining positioning precision.
3Reliability
If traditional multi-layer speaker arrangements are used, then three-dimensional sound playback is achieved, but adaptability to various speaker configurations deteriorates
Solution Approach 1:
The patent creates a universal control method that works with any multi-layer speaker configuration. The 2D calculator can handle different speaker geometries (circles, polygons, irregular shapes) and any spatial arrangement of layers, making the system adaptable to various speaker setups while reliably producing three-dimensional sound playback.
Solution Approach 2:
By formulating the positioning problem in terms of 2D projections onto each layer, the system gains versatility to accommodate different speaker configurations. Each layer's 2D geometry can be independently defined, allowing the system to adapt to various speaker arrangements while maintaining consistent 3D sound playback performance.
Data Source
AI summary
A method for controlling a three-dimensional multi-layer speaker arrangement having a plurality of speakers arranged in spaced layers. The method includes: providing information for a sound to be played back from a 3D source position assigned to the sound, wherein the source position is defined with respect to a reference point (RP) within the multi-layer speaker arrangement, extracting a 3D source position (SPXY) from the source position and calculating layer specific speaker coefficients using a 2D calculator to position the sound two dimensional source position, and feeding a vertical pan or 3D source position into a multilayer calculator for obtaining a layer gain factor for each layer for obtaining speaker coefficients used as individual gains enabling the speakers to play back the sound.