Smart Headphone Personalization with Directional Conversation
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Solution Overview
Problem
Existing headphones do not adequately account for differences in hearing capability between the left and right ears, leading to inconvenient volume adjustments and potential hearing damage, and fail to enhance conversation clarity in noisy environments.
Innovation Solution
A smart headphone personalization system with directional conversation function, utilizing cardioid microphones, a satellite positioning unit, and a mobile application for hearing inspection and compensation, allowing for personalized sound adjustments and voice magnification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the broadcasting volume is adjusted to accommodate the better-hearing ear, then the hearing capability of the better ear is optimized, but the worse ear may be damaged due to excessive volume
Solution Approach 1:
The patent divides the volume control into separate left and right ear channels, allowing independent volume adjustment for each ear based on individual hearing capabilities. This segmentation enables the system to optimize volume for each ear separately, preventing over-exposure of the more sensitive ear while ensuring adequate volume for the less sensitive ear.
Solution Approach 2:
The patent implements local quality adjustment by applying different volume levels and frequency compensations to different ears based on their specific hearing characteristics. The system measures hearing thresholds for each ear and applies tailored compensation, ensuring each ear receives appropriately customized audio output rather than a uniform setting.
2Object-affected harmful factors
If separate volume adjustment for left and right ears is implemented, then hearing protection is improved, but operational convenience deteriorates due to frequent adjustments
Solution Approach 1:
The patent performs preliminary hearing measurements and establishes personalized volume and frequency compensation settings for each ear during an initial setup phase. These pre-determined settings are stored and automatically applied, eliminating the need for frequent manual adjustments while maintaining hearing protection and optimization.
Solution Approach 2:
The system incorporates feedback mechanisms where hearing measurements are taken, settings are adjusted based on the measurements, and the results are stored for future use. This closed-loop approach ensures that the personalized settings are maintained and applied automatically, reducing the need for repeated user intervention.
3Device complexity
If standard frequency response is used, then device simplicity is maintained, but user preference satisfaction deteriorates
Solution Approach 1:
The patent changes the frequency response parameters based on measured hearing thresholds and user preferences. The system applies frequency-dependent compensation that is customized for each user's hearing characteristics and can be adjusted according to preferred music genres, transforming a standard frequency response into a personalized one without requiring complex manual adjustments.
4Reliability
If environmental noise is present during conversation, then communication occurs in real-world conditions, but conversation clarity deteriorates
Solution Approach 1:
The patent extracts and isolates the desired speech signal from the environmental noise through directional microphone arrays and signal processing. The system focuses on capturing sounds from specific directions (where speakers are located) while filtering out ambient noise, effectively separating the useful conversation content from the harmful background noise.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system eliminates the need for frequent volume adjustments, prevents hearing damage, and enhances conversation clarity by personalizing sound settings based on individual hearing preferences and environmental noise levels.
Implementation Method 1
the arrayed sound receiving unit comprises a plurality of sound receiver microphones of directivity, the sound receiver microphones being arranged on a brace member of the smart headphone device to receive and collect the sound from the front side of the user
Data Source
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AI summary
Disclosed are a smart headphone device (400) personalization system with directional conversation function and a method for using the system. A user downloads a headphone personalization application program unit (200) from the server device (100) for installation in a mobile device (300) that is then paired with the smart headphone device (400). The user enters corresponding data through a register module (21). The user wears the smart headphone device (400) to allow a hearing inspection module (22) to inspect hearing capabilities of ears and generate an inspection result. An automatic compensation unit (44) and a manual compensation module (23) make compensation according to the inspection result. Finally, the user adjusts the sound effect mode through a preference setting module (24) to complete personalization of the smart headphone device (400) . A directional conversation function is provided with the smart headphone device (400) to receive and magnify a sound from a front side and the user can clearly hear the sound from the front side.