Dual Acoustic Waveguide for Headset Boom Thickness Reduction
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Solution Overview
Problem
Traditional headsets with extended microphones face challenges in achieving optimal acoustic performance, weight minimization, manufacturing cost efficiency, and aesthetic appeal due to the need for larger, heavier booms that complicate manufacturing and increase overall thickness.
Innovation Solution
The use of dual acoustic waveguides with carefully controlled relative lengths and cross-sections, formed by bonding two groove-containing components, allows the microphone to be positioned near the pivot, minimizing boom thickness and optimizing sound transmission through a pivot, enabling a compact, stylish, and acoustically effective headset design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the microphone is extended from a boom and positioned close to the sound source, then sound reception clarity is improved, but the size and weight of the boom increase
Solution Approach 1:
The microphone is extracted from the boom structure and repositioned at the pivot point, separating the acoustic sensing function from the boom's structural role. This allows the boom to be thinner and lighter while maintaining sound reception clarity through the waveguide mechanism.
Solution Approach 2:
An acoustic waveguide is introduced as an intermediary element to transmit sound from the distal end of the boom to the microphone at the pivot. This mediator enables clear sound reception without requiring the microphone to be physically close to the sound source.
2Measurement precision
If the microphone is positioned at the distal end of the boom, then sound reception clarity is improved, but the overall thickness of the boom increases
Solution Approach 1:
The microphone is extracted from the distal end positioning and relocated to the pivot, allowing the boom to be thinner. The acoustic waveguide compensates for the distance, maintaining sound clarity without increasing boom thickness.
Solution Approach 2:
The acoustic path is redirected through the waveguide structure, utilizing the internal volume and routing of the boom rather than requiring external proximity. This dimensional reconfiguration allows thin boom design with effective acoustic coupling.
3Measurement precision
If the microphone is positioned close to the sound source, then sound reception clarity is improved, but manufacturing complexity increases
Solution Approach 1:
The microphone is extracted from the complex distal-end integration and relocated to the pivot, simplifying manufacturing. The waveguide is formed as an integrated feature of the boom structure, reducing assembly steps while maintaining acoustic performance.
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 provides a headset with improved acoustic performance, reduced weight, and lower manufacturing costs while maintaining a slim, aesthetically appealing form factor, addressing the limitations of prior art in waveguide construction and microphone placement.
Implementation Method 1
an first acoustic channel having a first end and a second end, the first acoustic channel configured to transmit acoustic waves from a first position to a second position
Data Source
AI summary
Methods and apparatuses for acoustic waveguides are disclosed. In one example, a method for constructing an acoustic waveguide includes forming a first acoustic waveguide component having a first outer surface and a first inner surface, where the first inner surface includes a first groove and a second groove. The method includes forming a second acoustic waveguide component having a second outer surface and a second inner surface, where the second inner surface includes a third groove and a fourth groove. The first acoustic waveguide component and the second acoustic waveguide component are bonded together so that the first groove and the third groove are arranged to form a first acoustic channel and the second groove and the fourth groove are arranged to form a second acoustic channel.