Adaptive Headphones with Sensor Feedback for Hearing Personalization

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Solution Overview

Problem

Standard audio headphones fail to account for individual differences in hearing, leading to suboptimal sound reproduction for users with varying hearing sensitivities, as they are not designed to adapt based on audiometric information.

Innovation Solution

Incorporating sensors and a signal processing module in headphones that measure user responses to audio stimuli, allowing for real-time adjustments to compensate for hearing differences, thereby enhancing sound perception to ideal or desired hearing levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard audio headphones are used, then the device complexity is low and ease of manufacture is high, but the adaptability to individual hearing characteristics is poor

Engineering Contradiction:
Improveadaptability to individual hearing characteristicsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system incorporates sensors to measure user responses to audio stimuli and uses this feedback information to automatically adjust audio signals in real-time, enabling adaptation to individual hearing characteristics without manual intervention

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The headphones perform self-calibration by automatically measuring user hearing characteristics and adjusting audio output without requiring manual equalization settings or user intervention, making the system self-adaptive

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If manual equalization controls are provided, then the ease of operation is improved, but the adaptability remains limited compared to automatic adaptation

Engineering Contradiction:
Improveautomatic adaptation to hearing profileVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically measures user hearing characteristics and adjusts audio signals without requiring manual equalization controls, making the adaptation process self-service and eliminating the need for user intervention in the equalization process

Inventive Principle:
Principle #25Self-service

3Measurement precision

If sensors and signal processing are added, then the measurement precision of hearing characteristics is improved, but the device complexity increases

Engineering Contradiction:
Improvemeasurement precision of hearing characteristicsVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Sensors measure user responses to audio stimuli and provide feedback to the signal processing module, enabling precise measurement of hearing characteristics through automated feedback-based assessment

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces manual hearing assessment methods with automated sensor-based measurement, using electronic and computational methods to precisely characterize user hearing characteristics

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10154333B2Personalization of auditory stimulus
Publication Date: 2018.12.11 NURA HLDG PTY LTD
  • US10154333B2 patent drawing
  • US10154333B2 patent drawing
  • US10154333B2 patent drawing

AI summary

Technology presented herein increases a user's enjoyment of sound by personalizing an audio signal so that the user perceives the audio signal as if the user had ideal hearing and/or desired hearing. In one embodiment, headphones on a user's head include a sensor and a speaker. While the speaker plays an audio signal to the user, the sensor records the user's response to the audio signal. The sensor can be a microphone, a brainwave sensor, an EEG sensor, etc. The user's response can be the audio response inside the user's ear, the brainwave response associated with the user, electrical skin response associated with the user, etc. Based on the measured response, and based on the knowledge of how other people perceive sound, the audio signal is modified to compensate for the difference between the user's hearing and the ideal hearing and/or desired hearing, therefore increasing the user's enjoyment of sound.