Interactive Hearing Aid Fitting System for Non-Expert Users
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Solution Overview
Problem
Current hearing aid fitting systems are complex and require specialized instruments and professional expertise, making them unsuitable for non-expert users and inaccessible for self-administration at home, leading to high costs and unaffordability.
Innovation Solution
A system that allows non-expert users to interactively fit hearing devices using a handheld device with an audio generator and programming interface, delivering calibrated test audio signals to a non-acoustic input of the hearing device, enabling users to adjust fitting parameters based on subjective assessment without clinical instrumentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional hearing aid fitting systems are used with specialized instruments and professional expertise, then measurement precision and reliability are improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent uses a computer-generated model of the patient's ear canal based on a photograph, creating a digital copy that replicates the acoustic properties of the physical ear canal. This allows conventional clinical measurements to be performed virtually, maintaining measurement precision while eliminating the need for specialized physical instruments and professional expertise.
Solution Approach 2:
The patent replaces mechanical acoustic measurement systems with computational acoustic modeling. Instead of using physical probe tubes and specialized fitting instruments, the system uses software to simulate acoustic wave propagation in a digitally reconstructed ear canal, substituting mechanical measurement with computational analysis.
2Reliability
If conventional clinical fitting processes are used with specialized instruments, then fitting reliability is improved, but ease of operation and accessibility deteriorate
Solution Approach 1:
The patent enables patients to perform their own hearing aid fitting at home using a smartphone camera to capture ear canal images, which are then processed by software to create acoustic models and optimize hearing aid parameters. This self-service approach maintains fitting reliability through automated algorithms while dramatically improving ease of operation and accessibility for non-expert users.
Solution Approach 2:
The patent introduces a computational software intermediary that processes smartphone images and translates them into acoustic models and fitting parameters. This intermediary bridges the gap between simple smartphone photography and complex hearing aid fitting, allowing reliable fitting without requiring patients to directly understand or perform complex acoustic measurements.
3Measurement precision
If conventional fitting systems requiring professional services are used, then measurement precision is improved, but cost increases
Solution Approach 1:
The patent replaces expensive, specialized clinical fitting instruments with a disposable or reusable smartphone camera, which is already widely owned by patients. The computational modeling software runs on standard mobile devices, eliminating the need for costly professional equipment while maintaining measurement precision through algorithmic accuracy.
Solution Approach 2:
The patent makes the hearing evaluation system universal by using a smartphone camera, which is a multi-functional device already present in most patients' pockets. This single device serves multiple purposes: capturing ear canal images, storing patient data, running acoustic modeling software, and communicating with the hearing aid, thereby eliminating the need for specialized expensive equipment.
Data Source
AI summary
Methods and systems of interactive fitting of a hearing aid by a non-expert person without resorting to a clinical setup are disclosed. The system includes an audio generator for delivering test audio signals at predetermined levels to a non-acoustic input of a programmable hearing aid in-situ. The consumer is instructed to listen to the output of the hearing device in-situ and interactively adjust fitting parameters of the programmable hearing aid according to the perceptual assessment of the hearing aid output in-situ. The output is representative of the test audio signal presented to the non-acoustic input. In one embodiment, the fitting system includes a personal computer, a handheld device communicatively coupled to the personal computer, and a fitting software application. In one embodiment, the fitting system includes an earphone for conducting a hearing evaluation.