Multi-Plane Soundbar Speaker Layout for 3D Audio Directivity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional systems for creating three-dimensional sound require a large number of loudspeakers and dedicated listening spaces, limiting their versatility and installation flexibility.
Innovation Solution
A loudspeaker transducer arrangement with a limited number of units arranged in specific geometric configurations, combined with signal processing, to create a 3D sound experience without interfering with the surroundings, using a soundbar design that integrates these units in separate planes and employs signal processing to direct sound reflections for optimal 3D sound distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of loudspeakers are used to create three-dimensional sound, then the 3D sound experience is improved, but the device complexity and installation requirements increase substantially
Solution Approach 1:
The patent applies dimensionality change by arranging loudspeaker transducer units in three separate planes (first plane with normal along x-axis, second plane with normal rotated by angle θ around z-axis, third plane with normal rotated by angle φ around y-axis and then by angle ρ around x-axis). This spatial arrangement in multiple dimensions allows a limited number of units to create 3D sound fields without requiring a large number of speakers, resolving the contradiction between sound quality and device complexity
Solution Approach 2:
The patent segments the loudspeaker system into distinct transducer units positioned in separate planes, with each unit emitting sound in specific directions (first unit along normal L1, second unit along normal L2, third unit along normal L3). This segmentation allows independent control and optimization of each unit's contribution to the overall 3D sound experience, achieving high-quality 3D audio with fewer total units
2Reliability
If conventional 3D sound systems are installed in dedicated listening spaces, then the 3D sound experience is optimized, but the adaptability to different environments is reduced
Solution Approach 1:
The patent creates a universal loudspeaker arrangement that can be deployed in various environments without requiring dedicated listening spaces. The geometric configuration of transducer units in separate planes with specific directional emissions (normals L1, L2, L3) provides a flexible framework that adapts to different room acoustics and listener positions, enabling 3D sound experience in diverse settings from home theaters to public spaces
3Reliability
If loudspeaker transducer units are arranged in separate planes with specific geometric configurations, then sound radiation is optimized in three dimensions, but the manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes sound radiation by carefully selecting geometric parameters including the angles θ and φ for plane orientations, and the rotation angles for defining normals L2 and L3. These parameter choices create a balanced configuration that achieves effective 3D sound distribution while maintaining practical manufacturing tolerances, resolving the contradiction between optimization performance and manufacturing precision requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves a natural 3D sound experience with minimal loudspeakers, optimizing sound radiation in three dimensions by controlling directivity through reflections off room surfaces, enhancing the sound experience without requiring dedicated installations.
Implementation Method 1
optimizing sound radiation in three dimensions by controlling directivity through reflections off room surfaces
Data Source
AI summary
A loudspeaker transducer arrangement is provided. At least three loudspeaker transducer units emit sound in different directions, where the loudspeaker transducer units are arranged in separate walls, arranged in separate planes, such that a first wall arranged in the first plane is defined by a normal L1 perpendicular to the first plane and the first loudspeaker transducer unit mainly emits sound along the normal L1, a second wall arranged in the second plane is defined by a normal L2 perpendicular to the second plane and the second loudspeaker transducer unit emits sound mainly along the normal L2, and a third wall arranged in the third plane is defined by a normal L3 perpendicular to the third plane and the third loudspeaker transducer unit emits sound mainly along the normal L3. A soundbar is also provided.