Hearing Aid Parameter Subspaces for Intuitive User Tuning
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Solution Overview
Problem
Existing hearing aid systems require complex and unintuitive adjustments by users or frequent visits to audiologists for optimal parameter settings, leading to reduced convenience and suboptimal performance.
Innovation Solution
A hearing device system with a signal processing unit that uses an n-dimensional parameter vector restricted to a subspace based on user behavior, allowing intuitive adjustment through a slide control or app on a portable device, reducing complexity and improving convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the parameter vector is fully adjustable through app or repeated audiologist visits, then adjustment precision is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The parameter space is segmented into multiple subspaces, each corresponding to a specific acoustic scenario (e.g., noise reduction subspace, directional lobe subspace). Users can select and adjust parameters within relevant subspaces rather than navigating the entire complex parameter space, making adjustment more intuitive and scenario-specific.
Solution Approach 2:
The patent introduces a new dimension of organization by structuring the parameter space hierarchically with subspaces. This dimensional transformation allows users to navigate from a flat, overwhelming parameter space to a structured, multi-level space where adjustments are grouped by functional relevance, improving ease of operation.
2Adaptability or versatility
If multiple parameter adjustments are allowed freely, then adaptability is improved, but device complexity increases
Solution Approach 1:
The parameter space is divided into functionally relevant subspaces (noise reduction, directional characteristics, compression, etc.), allowing the system to maintain high adaptability within each subspace while presenting a simplified, organized structure to users, thereby reducing perceived complexity.
Solution Approach 2:
The system dynamically adapts the available parameter subspaces based on the detected acoustic scenario. Different subspaces become active or accessible depending on the environment, allowing the device to be highly adaptable to specific situations while keeping the overall interface simple and context-relevant.
3Measurement precision
If parameter adjustment requires audiologist intervention, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The system enables users to perform parameter adjustments themselves through the app interface without requiring audiologist intervention. Users can directly modify parameters within subspaces based on their needs, eliminating travel time and waiting for professional appointments while maintaining sufficient adjustment precision for most users.
Solution Approach 2:
The app serves as an intermediary between the user and the complex parameter space. It provides user-friendly controls and interfaces that translate simple user actions into precise parameter adjustments, bridging the gap between user capability and system complexity without requiring professional mediation.
Data Source
AI summary
A method (32) for operating a hearing device system (2) containing a hearing device (4) that has a signal processing device (12) by way of which an output signal (24) is produced from an input signal (22) according to an n-dimensional parameter vector (26). The parameter vector (26) is restricted to a subspace (48) of the n-dimensional parameter space (40), the restriction being produced according to a behavior of a user. There is also described a hearing device system (2).