Loudspeaker Box Variable Radiation Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Loudspeaker systems face challenges in achieving versatile radiation properties suitable for both individual and group applications, as existing designs often require specific orientations and arrangements to optimize sound distribution, which can limit their adaptability and efficiency in different settings.
Innovation Solution
A loudspeaker box with a non-rotationally symmetrical sound source and a mechanism to position the sound source and acoustic elements relative to each other, allowing for customizable radiation patterns by dilating or constricting sound in specific planes, enabling operation in both horizontal and vertical positions and in various configurations such as line arrays or standalone setups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a loudspeaker system uses fixed radiation properties optimized for specific orientations, then sound distribution is optimized for that configuration, but adaptability to different applications and geometries is limited
Solution Approach 1:
The loudspeaker box incorporates a positioning mechanism that enables dynamic reorientation of the sound source and acoustic elements relative to each other. This allows the radiation characteristic to be changed between horizontal and vertical orientations, providing adaptability for different applications such as standalone operation or line array configurations without requiring multiple fixed designs.
2Adaptability or versatility
If acoustic elements are added to modify radiation patterns, then radiation control is improved, but device complexity increases
Solution Approach 1:
The positioning mechanism serves multiple functions: it reorients the sound source, positions acoustic elements in the sound path, and enables different operational modes (standalone or line array). This multi-functionality allows comprehensive radiation pattern control without proportionally increasing device complexity, as a single mechanism achieves multiple objectives.
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
This solution allows the loudspeaker box to be versatile and adaptable for different applications by adjusting radiation angles and patterns, ensuring even sound distribution in various geometries and configurations, enhancing its usability in both individual and group settings.
Implementation Method 1
the sound path of the sound source contains an acoustic element which dilates or constricts the radiation of sound in at least one radiation plane
Implementation Method 2
The perforated panels alter the phase response or the propagation-time response of the acoustic wave when passing through the holes such that the wavefront curves outwards
Implementation Method 3
Inclination of the lamellae with respect to the acoustic axis means that they act as detour elements which delay the sound and thereby alter the wavefront
Data Source
AI summary
A loudspeaker box (300) has a loudspeaker housing (1) and a sound source (3a) with a non-rotationally symmetrical radiation characteristic. The sound path of the sound source (3a) contains an acoustic element (4) which dilates or constricts the radiation of sound in at least one radiation plane. The loudspeaker box (300) comprises a mechanism which can be used to position the sound source (3a) and the acoustic element (4) in different rotational positions relative to one another.