Transparent Audio Playback Tuned to Individual Hearing Profiles
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Solution Overview
Problem
Traditional audio playback devices struggle to effectively adjust for individual hearing-related differences among users, leading to inadequate transparent transmission processing of external audio signals.
Innovation Solution
An audio signal processing method that includes acquiring hearing and ear canal feature information to determine personalized transparent transmission parameters, using a feedforward and feedback microphone system to adjust audio signals based on user-specific characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional audio processing methods (volume adjustment, noise reduction) are used, then the audio playback device can perform basic audio processing, but it cannot effectively adjust for individual hearing-related differences among users
Solution Approach 1:
The system performs preliminary hearing characteristic detection by playing detection audio signals and acquiring user feedback before actual audio playback. This preliminary measurement of hearing thresholds and ear canal characteristics enables the system to pre-calculate personalized transparent transmission parameters, resolving the contradiction by preparing adaptive processing data in advance without compromising real-time processing precision.
Solution Approach 2:
The system changes audio signal parameters dynamically based on detected hearing characteristics. By calculating personalized transparent transmission parameters (including gain factors and frequency responses) and applying them to adjust audio signals, the system achieves both adaptability to individual users and precision in transparent transmission processing, directly resolving the technical contradiction.
2Measurement precision
If personalized hearing characteristic detection is implemented, then transparent transmission processing accuracy is improved, but device complexity increases
Solution Approach 1:
The audio playback device integrates multiple functions into a unified system: it serves both as an audio player and as a hearing detection device. By using the same microphones and processing units for both detection and playback operations, the system achieves precise transparent transmission processing without proportionally increasing device complexity.
Solution Approach 2:
The system performs self-characterization by automatically detecting user hearing characteristics and ear canal properties without requiring external specialized equipment. The device uses its own built-in sensors and processing capabilities to complete the detection and parameter calculation, reducing the need for additional complex external components.
3Ease of operation
If hearing characteristic detection and personalized parameter calculation are performed, then user experience is enhanced, but processing time is increased
Solution Approach 1:
Hearing characteristic detection and parameter calculation are performed as preliminary actions before actual audio playback begins. Once the personalized transparent transmission parameters are pre-calculated and stored, subsequent audio processing can proceed rapidly without repeating the detection process, thus enhancing user experience while minimizing processing time during actual use.
Data Source
AI summary
Provided are an audio signal processing method, an audio playback device and a storage medium. The method is applied to the audio playback device. In the method, hearing feature information for first detection audio signals are acquired, the first detection audio signals being output by a terminal device that establishes a communication connection with the audio playback device. A transparent transmission parameter is determined based on the hearing feature information, the transparent transmission parameter being configured to perform transparent transmission processing on a target audio signal to be received.