Wedge Loudspeaker Array Layout for Constant Directivity Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing loudspeaker systems face challenges in achieving high sound quality, beamwidth, directivity, and power loss across multiple frequency domains, necessitating new designs that improve beamwidth and directivity while maintaining seamless high-frequency driver arrays.
Innovation Solution
A stacked loudspeaker system with a wedge-shaped cabinet containing a low-frequency driver and an array of high-frequency drivers on a baffle, where the high-frequency drivers are arranged in a constant spacing to form a seamless array across multiple speakers, ensuring consistent beamwidth and directivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional loudspeaker systems are used, then they can produce sound, but the sound distribution is uneven and directional control is limited
Solution Approach 1:
The loudspeaker system is divided into multiple independent loudspeakers arranged in a wedge configuration, where each loudspeaker can be independently controlled to achieve specific sound distribution patterns. This segmentation allows precise control over sound propagation in different directions while eliminating uneven distribution issues.
Solution Approach 2:
The wedge-shaped arrangement of loudspeakers creates an asymmetric configuration that naturally directs sound energy in specific directions. This asymmetric geometry enables the system to achieve constant directivity patterns and improve sound distribution control compared to symmetric conventional arrangements.
2Adaptability or versatility
If multiple loudspeakers are added to improve sound distribution, then coverage improves, but system complexity increases
Solution Approach 1:
Multiple loudspeakers are merged into a single integrated wedge structure that functions as one cohesive unit. The wedge configuration combines the acoustic output of individual loudspeakers into a unified sound field with controlled directivity, improving coverage without proportionally increasing system complexity.
Solution Approach 2:
The wedge loudspeaker system is designed to perform multiple functions simultaneously: it provides wide sound coverage, maintains constant directivity across different listening positions, and can be configured for various audio applications. This multi-functionality justifies the added complexity by delivering superior performance across multiple criteria.
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
The system provides excellent beamwidth, directivity, and power transmission metrics with seamless high-frequency output, maintaining uniform vertical and horizontal coverage across varying array sizes.
Implementation Method 1
wedge-shaped configuration of the loudspeakers
Implementation Method 2
constant-directivity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A loudspeaker for use in a system of loud speakers comprises a wedge-shaped cabinet having front, back, top, bottom, left and right side faces, a baffle positioned and covering a portion of the front face of the cabinet, a low frequency driver positioned behind the baffle and spaced rearwardly therefrom toward the back face of the cabinet, and a vertically-aligned array including a plurality of high frequency drivers supported by the baffle and shaped, sized and positioned to adjoin with common spacing to a further loudspeaker in the system of loudspeakers.