Headphone Speaker Trenches for Spatial Audio
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multi-channel headphones produce monotonous sound output and lack the ability to create a diverse sound environment and spatial sense of the sound field due to speakers being located at the same level.
Innovation Solution
The design includes inclined speaker surfaces and a crossfeed speaker system with specific output paths and structures, such as trenches and through holes, to modify sound timing and frequency, allowing both ears to hear multiple sound channels and enhancing stereo sound experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If speakers are located on the same level in conventional multi-channel headphones, then the structure is simple, but the sound output is monotonous and lacks spatial sense
Solution Approach 1:
The patent applies dimensionality change by arranging speakers at different levels (vertical stacking) rather than on the same horizontal plane. The first speaker and second speaker are positioned at different vertical levels within the earphone body, creating a multi-level spatial arrangement that enables diverse sound field effects and spatial perception while maintaining structural compactness.
2Adaptability or versatility
If speakers are arranged at different levels to create spatial sound, then sound quality improves, but device complexity increases
Solution Approach 1:
The patent employs nesting by placing the first speaker and second speaker in a vertically stacked configuration within the earphone body, where each speaker is positioned in its own designated space level. This nested arrangement allows multiple speakers to coexist in a compact volume, achieving spatial sound effects without proportionally increasing the overall device size or structural complexity.
3Quantity of substance
If multiple sound channels are provided, then audio information increases, but sound guidance and positioning becomes more difficult
Solution Approach 1:
The patent applies local quality by assigning different spatial positions and orientations to different speakers within the earphone. Each speaker is positioned at a specific location (different vertical levels) and can be oriented to direct sound in specific directions, enabling precise acoustic field positioning and clear sound channel differentiation despite providing multiple audio channels.
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A headphone is provided. The headphone includes a housing and an speaker. The housing includes a first layer structure, a first receiving space, a first output path, a first trench and a sound output side. The speaker is located in the first receiving space, wherein the speaker includes a first speaker orientation, and the first speaker orientation corresponds to the first output path. The first output path includes the first trench, which is located at the first layer structure, extends around the speaker, and is connected to the sound output side.