In-Ear Audio System Using Waveguide Consolidation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Digital in-ear audio devices are difficult and expensive to manufacture due to their complex electronic components and small size, making it challenging to produce a cost-effective system that maintains high sound quality.
Innovation Solution
The in-ear audio system employs a physical geometry of open regions within the casing, utilizing multiple drivers and waveguides to direct sound, including a bass driver, high-frequency drivers, and mid-frequency drivers, which are communicatively coupled to a consolidation zone and sound tube, reducing the need for expensive digital components and enhancing sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If digital components and small form factor are used, then sound quality is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces complex digital electronic components with a mechanical/acoustic system consisting of multiple drivers (bass driver, mid-frequency driver, high-frequency driver) and waveguides. This mechanical substitution eliminates the need for digital signal processing components while maintaining high sound quality through precise acoustic wave management and driver coordination.
Solution Approach 2:
The audio system is segmented into multiple specialized drivers handling different frequency ranges (bass, mid, high frequencies), each with its own waveguide path. This segmentation allows each component to be optimized for its specific function, improving overall sound quality while simplifying the design of individual components compared to a single complex digital system.
2Measurement precision
If digital components and small form factor are used, then sound quality is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs multiple relatively simple drivers and waveguides that can be manufactured using conventional acoustic manufacturing techniques rather than expensive digital component fabrication. These acoustic components can be produced more cheaply and assembled using standard manufacturing processes, reducing overall system cost while maintaining high audio performance.
3Measurement precision
If multiple drivers and waveguides are used, then sound clarity and spaciousness are improved, but device complexity increases
Solution Approach 1:
The audio system is segmented into multiple specialized drivers handling different frequency ranges (bass, mid, high frequencies), each with its own waveguide path. This segmentation allows each component to be optimized for its specific function, improving overall sound quality while simplifying the design of individual components compared to a single complex digital system.
Solution Approach 2:
Waveguides serve as intermediary structures that channel and shape acoustic waves from each driver to the listener's ear. These waveguides simplify the integration of multiple drivers by providing dedicated acoustic pathways, reducing the complexity of managing multiple sound sources while enhancing sound clarity and spatial perception.
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 configuration results in high-quality audio output, reduces manufacturing complexity and costs, and provides improved sound clarity and spaciousness by effectively directing acoustic energy, while minimizing back volume and background noise.
Implementation Method 1
The bass driver may be configured to output sound into a first waveguide. The at least one high frequency driver and the at least one mid frequency driver may be configured to output sound into a second waveguide.
Implementation Method 2
The first and second waveguides may then both be communicatively coupled to a consolidation zone or chamber. The consolidation zone may then be communicatively coupled a sound tube that conducts or directs the consolidated sound
Data Source
AI summary
Techniques are described for an in-ear audio system that delivers high quality sound into an ear canal of the user using two or more waveguides. Each of the waveguides may deliver sound output by individual drivers to a consolidation zone. The sound may be mixed at the consolidation zone and delivered to the ear canal of the user.