Surface-Mounted Microphone Clearance Layout for Reflection Control
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Solution Overview
Problem
Microphone arrangements are adversely affected by sound reflections off structural surfaces, leading to interference and reduced audio quality, which existing solutions fail to adequately address.
Innovation Solution
A microphone arrangement with a housing and fastening portion that positions the audio opening close to the structural surface, maintaining a minimal distance and using a clearance with controlled sound reflection properties to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the microphone arrangement is positioned close to structural surfaces, then sound acquisition is improved, but interference from sound reflections increases
Solution Approach 1:
The patent introduces a fastening portion as an intermediary element between the microphone arrangement and the structural surface. This fastening portion includes a reflection surface that acts as a controlled mediator for sound waves, preventing direct reflection from the structural surface while maintaining the microphone's close positioning for optimal sound acquisition.
Solution Approach 2:
The patent applies local quality by creating a specific clearance region between the housing and the structural surface. This clearance has distinct acoustic properties compared to other areas, allowing sound to pass through while blocking direct reflection paths. The reflection surface on the fastening portion is strategically positioned to affect only specific sound paths without compromising overall sound acquisition.
2Measurement precision
If the audio opening is positioned close to the structural surface, then direct sound capture is enhanced, but reflected sound interference increases
Solution Approach 1:
The fastening portion with its reflection surface serves as an intermediary that intercepts reflected sound before it reaches the audio opening. This mediator element is positioned specifically to block reflection paths while allowing direct sound to reach the microphone through the clearance region.
Solution Approach 2:
The patent solves the problem by transitioning from a two-dimensional surface mounting to a three-dimensional clearance-based approach. The clearance creates a volumetric space between the housing and the structural surface, allowing direct sound to pass through while blocking reflection paths in different spatial dimensions.
3Ease of manufacture
If the microphone arrangement is mounted directly on the structural surface, then installation is simplified, but tampering and environmental damage risk increases
Solution Approach 1:
The patent segments the microphone arrangement into distinct components: the housing containing the microphone, and a separate fastening portion for mounting. This segmentation allows the housing to be protected and sealed against environmental factors while the fastening portion handles the mounting function, maintaining installation simplicity while improving reliability.
Solution Approach 2:
The fastening portion acts as an intermediary mounting element that separates the microphone housing from direct contact with the structural surface. This intermediary provides protection while maintaining secure attachment, and includes features like reflection surfaces that serve acoustic functions.
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 solution effectively reduces audio interference, enhances sound acquisition, and provides protection from tampering and environmental factors while maintaining a sleek design.
Implementation Method 1
A microphone arrangement for reducing interference from sound reflections off of structural surfaces onto which the microphone arrangement is attached
Implementation Method 2
a reflection surface, facing towards the structural surface or towards a sound source
Data Source
AI summary
A microphone arrangement includes a microphone element, a housing, containing the microphone element and associated electronics, and fastening portion located at a bottom of the microphone arrangement, configured to attach the microphone arrangement to the structural surface. The housing has an audio opening facing a clearance defined between the housing and the structural surface, and wherein the clearance has a clearance exit in an outer lateral perimeter of the microphone arrangement. The arrangement is enables reduction of interference from sound reflections off of structural surfaces onto which the microphone arrangement is attached.