Hybrid Headset Driver Layout for Lower Acoustic Interference
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Solution Overview
Problem
Existing coaxial flat speaker headsets face issues with sound consistency due to interference between speakers, resonance, and lack of personalized sound adjustment based on user hearing characteristics, limiting high-quality audio experiences.
Innovation Solution
A dynamic-and-flat combination headset design with non-collinear speakers, incorporating a vibration-damping ring, sound-absorbing material, and an active crossover system with a microprocessor for personalized sound adjustments, ensuring smooth frequency transitions and reduced resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If coaxial flat speaker technology is used to achieve natural sound performance, then sound consistency and depth are improved, but sound wave interference and resonance within the enclosure worsen
Solution Approach 1:
The patent applies asymmetry by positioning the flat speaker and dynamic speaker at non-collinear angles (45°-90°) rather than traditional coaxial alignment. This asymmetric arrangement reduces acoustic interference between the speakers while maintaining their functional integration, thereby improving sound consistency without exacerbating sound wave interference and resonance issues.
2Volume of moving object
If limited internal space in headset is used, then portability is improved, but sound wave reflection and resonance worsen
Solution Approach 1:
The patent applies local quality by introducing sound-absorbing material specifically at the rear cavity of the headset where sound wave reflection occurs. This localized treatment addresses resonance issues in the specific area most prone to reflection without requiring reduction of the overall headset volume, thus maintaining portability while mitigating harmful resonance effects.
3Device complexity
If traditional fixed sound settings are used, then device simplicity is maintained, but adaptability to user hearing characteristics worsens
Solution Approach 1:
The patent applies dynamics by implementing an active crossover system with adjustable frequency division points and a microprocessor-based equalizer that can dynamically adapt sound settings based on user hearing characteristics. This dynamic adjustment capability enhances adaptability to different users without significantly increasing device complexity, as the system automatically optimizes parameters rather than requiring manual configuration.
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
Enhances sound clarity, reduces distortion, and provides a personalized listening experience by optimizing frequency and phase responses based on user hearing, resulting in improved audio quality and comfort.
Implementation Method 1
a vibration-damping ring of the flat speaker, wherein the main body of the flat speaker is mounted on the vibration-damping ring
Implementation Method 2
A sound-absorbing material is installed at a position on the housing corresponding to the axial direction of the flat speaker, so that a sound emitted from a side of the flat speaker away from a human ear is largely absorbed by the sound-absorbing material
Data Source
AI summary
The present disclosure relates to a dynamic-and-flat combination headset, where a dynamic speaker is used as a bass unit and a flat speaker is used as a mid-high frequency unit. By positioning an axial direction of the flat speaker and an axial direction of the dynamic speaker in a non-collinear arrangement, and preferably perpendicular to each other. An acoustic interference between the two driver units is effectively reduced, improving sound clarity and positional accuracy. An installation of a sound-absorbing material within a housing significantly decreases resonance and distortion caused by internal sound wave reflections, enhancing overall audio quality. A configuration of an active crossover and a crossover adjuster ensures a smooth transition between the flat speaker and the dynamic speaker, achieving a precise frequency division. An open design of the dynamic speaker not only improves a bass response but also enhances overall comfort. The present disclosure provides excellent sound performance and a comfortable wearing experience, suitable for applications such as music production, monitoring, and high-quality audio enjoyment.