Wearable Device Hearing Aid Software Signal Processing
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Solution Overview
Problem
Current hearing aid chips are expensive, making them inaccessible to most hearing-impaired individuals, and existing hearing aid devices that modify Bluetooth headsets to provide hearing aid functions also rely on these costly chips, lacking convenience for users.
Innovation Solution
A hearing aid function realization method and apparatus using a wearable device system that collects external sound signals, processes them through pre-installed hearing aid software, and transmits the processed signals to a Bluetooth headset, employing sound field identification, noise suppression, dynamic range compression, spectrum shifting, feedback suppression, and gain amplification to meet the hearing needs of users without requiring an expensive hearing aid chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hearing aid chip is used to provide hearing aid functions, then the hearing quality and processing capability are improved, but the device cost becomes too high for most users
Solution Approach 1:
The patent uses software to copy and simulate the functions of an expensive hearing aid chip. The hearing aid software includes algorithms for noise suppression, dynamic range compression, spectrum shifting, and feedback suppression that replicate the processing capabilities of dedicated hearing aid chips, thereby providing similar hearing assistance functions at a much lower cost using general-purpose wearable device processors
Solution Approach 2:
The patent replaces the hardware-based hearing aid chip with a software-based processing system running on general-purpose wearable devices. Instead of relying on specialized electronic circuitry, the system uses programmable software algorithms to perform audio signal processing, substituting dedicated hardware with flexible software implementation on commodity devices
2Adaptability or versatility
If hearing aid software with multiple processing algorithms is implemented, then the hearing aid functionality and user benefit are improved, but the software complexity and processing requirements increase
Solution Approach 1:
The patent divides the hearing aid software into distinct functional modules: noise suppression module, dynamic range compression module, spectrum shifting module, and feedback suppression module. Each module handles a specific processing task independently, making the overall complex system manageable through modular design. This segmentation allows the software to provide comprehensive hearing aid functions while maintaining organized and manageable code structure
Solution Approach 2:
The patent implements a universal hearing aid software system that can perform multiple hearing assistance functions (noise suppression, dynamic range compression, spectrum shifting, feedback suppression) within a single integrated software package. This multi-functional approach allows the system to adapt to different hearing needs and environments without requiring separate applications, reducing overall system complexity while maintaining versatility
3Ease of manufacture
If software-based processing is used instead of hardware chips, then the cost and accessibility are improved, but the processing power and computational resources required increase
Solution Approach 1:
The patent optimizes the software processing by dynamically adjusting processing parameters such as algorithm complexity, processing frequency, and computational intensity based on the current audio environment and user needs. This allows the system to use higher computational resources only when necessary (e.g., in noisy environments requiring advanced noise suppression) while conserving battery power during normal conditions, thereby making software-based processing energy-efficient and accessible
Data Source
AI summary
The present invention discloses a hearing aid function realization method based on a wearable device system and a wearable device. The method comprises: collecting external sound signals based on a microphone on a wearable device, and inputting the collected external sound signals into pre-installed hearing aid software; processing the external sound signals based on the hearing aid software to obtain the processed sound signals, wherein the processed sound signals meet the hearing aid needs of hearing-impaired users; and transmitting the processed sound signals to a Bluetooth headset connected with a Bluetooth module based on the Bluetooth module, so that the hearing-impaired users receive and listen to the processed sound signals based on the Bluetooth headset.