Portable Hearing Units for Selective Speech in Noisy Settings
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Solution Overview
Problem
Conventional hearing aids fail to effectively address the challenges faced by hard of hearing individuals in various settings, such as noisy restaurants, cars, teleconferences, and public spaces, as they struggle to selectively amplify specific sound inputs while minimizing background noise, leading to difficulties in communication and increased disruption to others.
Innovation Solution
A system of interconnectible portable hearing-assistive sound units that allow multiple audio signals to be shared among users, enabling each user to adjust the volume of individual audio inputs in real-time, using microphones, amplifiers, and sound combiners to create personalized audio settings, thereby enhancing communication in noisy environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hearing aids amplify all sound inputs equally, then hard of hearing individuals can hear better, but background noise and unwanted sounds are also amplified making communication difficult
Solution Approach 1:
The patent divides the audio signal processing into separate channels for different sound sources (desired speech vs. background noise). Each channel can be independently adjusted, allowing the system to amplify specific sounds while suppressing others, thereby resolving the contradiction between hearing assistance and noise interference
Solution Approach 2:
The system applies different processing qualities to different audio inputs. Desired speech signals receive amplification and enhancement, while background noise signals receive attenuation or filtering. This localized quality adjustment allows selective hearing improvement without uniformly amplifying all sounds
2Reliability
If hard of hearing individuals use conventional hearing aids in noisy environments, then they can hear speech, but they must raise their voice to be understood by others
Solution Approach 1:
The system acts as an intermediary between the hard of hearing individual and the communication environment. It processes and clarifies incoming speech signals before presenting them to the user, improving understanding without requiring the user to compensate by raising their voice, thus eliminating the disruptive effect on others
3Ease of operation
If portable hearing-assistive sound units allow selective volume adjustment of individual audio inputs, then communication clarity improves, but device complexity increases
Solution Approach 1:
The portable hearing-assistive sound unit integrates multiple functions into a single device: audio signal reception, separation of sound sources, independent volume control for each channel, and wireless communication capabilities. This multi-functionality provides complex capabilities while maintaining a unified device structure that doesn't excessively increase complexity
Data Source
AI summary
A system consisting of interconnectible, hearing-assistive, portable “units” which can address communication problems that persons who are hard of hearing experience in many social settings (such as while dining out with friends in a noisy restaurant). The system allows each unit operator to share multiple audio input signals coming into any of the connected units with the other participants using the system. The operator is also able to selectively amplify one or more of the incoming audio signals (such as from the voices of one or more of the participants) while blocking out or turning down another (such as from background music). The units are capable of integrating audio signals with video, word processing and internet data. An innovative method for improving communication for persons who are hard of hearing in public and private settings is also claimed.