Hearing Aid Classifier for Adaptive Audio Processing
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Solution Overview
Problem
Current hearing aids lack an efficient mechanism to automatically adapt to changing auditory environments and user behaviors, leading to suboptimal sound processing and noise suppression.
Innovation Solution
A hearing system with a signal processing sub-system having multiple modes of operation, a classifier to analyze the auditory environment, and a personal communication device that monitors user behavior and environment changes, using short-range data communication to automatically select the appropriate mode for the hearing aid based on acoustic and positional data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hearing aid uses a classifier to automatically select modes based on auditory environment analysis, then speech intelligibility and noise suppression are improved, but device complexity increases
Solution Approach 1:
The signal processing sub-system is divided into multiple independent modes of operation, each optimized for specific acoustic environments. The classifier segments the continuous auditory environment into discrete categories, allowing the hearing aid to switch between pre-configured processing modes rather than attempting to optimize all parameters simultaneously, thereby managing complexity while maintaining reliability
Solution Approach 2:
Multiple signal processing modes are pre-configured with optimized audio processing parameters for different acoustic environments. The classifier pre-analyzes the auditory environment and selects the most appropriate pre-configured mode in advance, avoiding the need for real-time parameter optimization and reducing computational complexity during operation
2Adaptability or versatility
If a hearing aid continuously monitors and adapts to changing environments, then adaptability is improved, but energy consumption increases
Solution Approach 1:
The classifier operates periodically rather than continuously, analyzing the auditory environment at scheduled intervals and switching modes when environmental changes are detected. This periodic operation maintains adaptability to changing conditions while significantly reducing energy consumption compared to continuous monitoring and processing
Solution Approach 2:
The hearing aid dynamically adjusts its monitoring and mode selection based on detected environmental changes. The system remains in current modes during stable conditions to conserve energy, and only activates intensive classification and mode switching when environmental changes are detected, creating a dynamic balance between adaptability and energy consumption
3Object-affected harmful factors
If a hearing aid uses multiple signal processing sub-systems with different modes, then noise suppression is improved, but device complexity increases
Solution Approach 1:
Multiple signal processing sub-systems are implemented with the same core architecture but different optimized parameter sets for various acoustic environments. This universal design allows the hearing aid to handle multiple noise types and environments using a single adaptable framework rather than requiring entirely separate processing paths for each function, reducing overall system complexity while maintaining effective noise suppression across diverse conditions
Data Source
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AI summary
A hearing system includes a hearing aid (10) and a personal communication device (20), and both have a short range data transceiver (15, 29) for short range data communication. The hearing aid (10) has a signal processor (13) processing an electric input signal according to predefined audio processing parameters, and a signal processing sub-system with at least two modes of operation applying respective sets of audio processing parameters. A program selector component (16) has a classifier (51) analyzing the electric input signal and classifies an auditory environment of the hearing aid (10). The personal communication device (20) has an auxiliary classifier component (24) monitoring the use of the personal communication device, and generates and transmits a notification upon detection of a change of the environment. The program selector component (16) receives the notification from the auxiliary classifier component (24), and takes the notification into account when selecting one of said at least two modes of operation for the signal processing sub-system.