Customizable Loudspeaker Waveguides With Interchangeable Inserts
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Solution Overview
Problem
Existing loudspeakers with fixed waveguides are limited in their ability to adapt to different acoustic coverage needs in varying environments, leading to sound distortions and dead zones due to specific placements and angles that do not account for changing spaces.
Innovation Solution
A customizable waveguide system featuring a frame and interchangeable waveguide inserts with asymmetrical half-horns and a divider, allowing for adjustable beamwidths and orientations to suit specific acoustic coverage requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed waveguide with specific angles is used in loudspeakers, then the acoustic wave direction is optimized for a particular space, but the loudspeaker cannot adapt to different acoustic coverage needs in varying environments
Solution Approach 1:
The waveguide is divided into a frame and multiple interchangeable inserts, each with different horn configurations. This segmentation allows the system to adapt to different acoustic coverage needs by swapping inserts rather than redesigning the entire waveguide, resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
A single waveguide frame is designed to accommodate multiple different inserts, making the waveguide system universal. The frame serves as a common platform that can work with various horn configurations to meet different acoustic coverage requirements, achieving versatility without proportionally increasing overall complexity.
2Adaptability or versatility
If multiple fixed-angle loudspeakers are deployed to cover different spaces, then acoustic coverage is optimized for specific areas, but the system requires multiple specialized devices instead of a single adaptable unit
Solution Approach 1:
The waveguide system is designed as a universal platform that can perform multiple acoustic coverage functions through interchangeable inserts. A single loudspeaker equipped with this system can replace multiple specialized loudspeakers, reducing the quantity needed while maintaining acoustic coverage flexibility.
Solution Approach 2:
The waveguide system transitions from a static, fixed configuration to a dynamic, reconfigurable system. By allowing inserts to be swapped based on acoustic requirements, the system adapts its behavior rather than requiring multiple fixed devices, reducing the total number of loudspeakers needed.
3Manufacturing precision
If waveguides are customized for specific spaces, then sound distribution is optimized, but manufacturing and installation become more complex and time-consuming
Solution Approach 1:
The waveguide is segmented into a standardized frame and interchangeable inserts. Each insert can be manufactured with precise angles for specific acoustic applications, while the frame remains a common component. This segmentation allows precision manufacturing of individual inserts without complicating the overall manufacturing process.
Solution Approach 2:
Different horn inserts are pre-manufactured with specific angle configurations optimized for different acoustic coverage needs. These pre-made inserts are then simply swapped into the frame as needed, eliminating the need for complex custom manufacturing and installation procedures for each specific application.
4Reliability
If fixed-angle waveguides are used, then the compression driver coupling is optimized for a specific direction, but the system cannot adjust to changing acoustic requirements in different environments
Solution Approach 1:
The waveguide system transitions from a static configuration to a dynamic, reconfigurable system. By allowing the horn inserts to be swapped based on environmental acoustic requirements, the system maintains reliable directional control while adapting to different spaces, resolving the contradiction between reliability and adaptability.
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
Enables a single loudspeaker to provide optimal acoustic coverage in diverse spaces by allowing quick customization of beam angles and patterns, reducing distortions and ensuring consistent sound distribution.
Implementation Method 1
The compression driver is attached to a waveguide that improves the coupling between the compression driver and the surrounding air, for example by providing a form of impedance matching between the material of the compression driver and the air
Data Source
AI summary
Customizable waveguides for use in a loudspeaker and associated systems and methods are disclosed herein. In some embodiments, the waveguide includes a frame and a waveguide insert sealably couplable to the frame. The frame can include a first end region that can be coupled to a compression driver in the loudspeaker and a second end region opposite the first end region. The second end region can be coupled to a front baffle of the loudspeaker when the first end region is coupled to the compression driver. Further, the frame can be symmetric about vertical and/or horizontal axes of the frame. The waveguide insert can include a first half-horn couplable to a first longitudinal half of the frame, a second half-horn couplable to a second longitudinal half of the frame opposite the first longitudinal half, and a divider positioned between the first half-horn and the second half-horn.