Listening Device Communication Quality Feedback via Perception Unit
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Solution Overview
Problem
Current listening devices do not effectively communicate communication quality to either the wearer or the communication partner, making it difficult for both parties to adapt their interaction, as they lack real-time feedback on speech reception quality.
Innovation Solution
Incorporating a signal processing unit and perception unit in the listening device to measure and communicate communication quality, either indirectly through audio signal analysis or directly via brain signal measurement, allowing for dynamic adjustment of signal processing to enhance speech intelligibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If listening devices process audio signals based on fixed audiological data and standard algorithms, then the device complexity is reduced and ease of manufacture is improved, but the adaptability to different communication situations and spectral interactions deteriorates
Solution Approach 1:
The patent implements dynamic signal processing that continuously adapts to changing acoustic environments and spectral conditions. The system adjusts processing parameters in real-time based on detected speech signals, background noise, and wind conditions, transforming fixed processing into adaptive dynamic processing that responds to spectral content variations and interaction effects between different sound sources
Solution Approach 2:
The system changes processing parameters dynamically based on detected acoustic conditions. It monitors spectral content, signal-to-noise ratios, and environmental factors to adjust compression, noise reduction, and feedback cancellation parameters, allowing the device to adapt to different communication situations while maintaining manageable complexity through parameter-based adaptation
2Device complexity
If listening devices do not display signal quality information, then the device complexity is reduced, but the ability to assess and improve communication quality deteriorates
Solution Approach 1:
The patent implements feedback mechanisms that provide communication quality information to both the wearer and communication partners. The system analyzes the processed output signal to generate quality metrics and transmits this information wirelessly to external devices for display, enabling real-time assessment of speech intelligibility and allowing dynamic adjustment of communication strategies based on actual reception quality
Solution Approach 2:
The system uses an intermediary wireless communication channel and external display device to convey quality information. Rather than requiring complex direct display mechanisms in the hearing device itself, the patent employs a mediator (wireless transmitter and external display) to present quality metrics, reducing device complexity while maintaining comprehensive quality information availability
3Reliability
If listening devices use standard signal processing algorithms, then the manufacturing precision and reliability are improved, but the precision in detecting and measuring spectral content interactions and communication quality deteriorates
Solution Approach 1:
The system performs preliminary analysis of the acoustic environment and spectral content before applying standard signal processing algorithms. By pre-characterizing the acoustic scene, identifying speech signals, and detecting environmental conditions, the system prepares optimized processing parameters in advance, allowing standard algorithms to operate at their full potential while achieving high measurement precision through informed parameter selection
Solution Approach 2:
The patent applies signal processing beyond standard requirements by implementing additional quality assessment and spectral analysis functions. It performs excessive measurement and analysis to fully characterize communication quality, using multiple detectors and analysis algorithms that go beyond basic hearing aid processing, thereby achieving superior measurement precision while maintaining reliability through redundant verification
Data Source
AI summary
A listening device processes an electric input sound signal and provides an output stimulus perceivable to a wearer of the listening device as sound, the listening device comprising a signal processing unit for processing an information signal originating from the electric input sound signal and to provide a processed output signal forming the basis for generating said output stimulus. A perception unit establishes a perception measure indicative of the wearer's present ability to perceive said information signal. A signal interface communicates the perception measure to another person or device.