Head-Mounted Audio Activity Detection for Smart Transparency
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Solution Overview
Problem
Existing audio output devices require manual adjustments for active noise reduction (ANR) and other features, which can be cumbersome for users switching between activities.
Innovation Solution
A head-mounted wearable audio output device that intelligently adjusts audio output based on detected user activity and head orientation using sensors like accelerometers and gyroscopes, automatically controlling noise cancellation and audio settings in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment interfaces are provided for ANR and audio output settings, then users can control noise cancellation levels, but the operation becomes cumbersome when switching between activities
Solution Approach 1:
The system automatically detects user activity through sensors and adjusts ANR and audio output settings without manual intervention. The processor monitors sensor data, determines current activity, and autonomously configures audio parameters, allowing the device to serve itself rather than requiring user operation.
Solution Approach 2:
The system continuously monitors sensor data providing feedback about user activity state, and uses this feedback to dynamically adjust audio output and ANR settings. This closed-loop control enables automatic adaptation to changing activities, eliminating the need for manual setting adjustments.
2Loss of time
If activity detection sensors are added to automatically control audio output, then adjustment time is reduced, but device complexity increases
Solution Approach 1:
The audio output device integrates multiple functions including activity detection, orientation sensing, and automatic audio parameter adjustment within a single system. The processor handles both audio processing and sensor data analysis, making the device multi-functional without requiring separate dedicated systems for each function.
Solution Approach 2:
The system combines activity detection sensors, orientation sensors, audio processing, and automatic control logic into an integrated device. Rather than separate components, the sensors and processor work together as a unified system that simultaneously performs multiple functions, reducing overall system complexity.
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
Provides seamless, activity-based transparency and situational awareness without manual input, enhancing user experience and safety by adapting to changing activities and orientations.
Implementation Method 1
A head-mounted wearable audio output device that intelligently adjusts audio output based on detected user activity and head orientation using sensors like accelerometers and gyroscopes
Implementation Method 2
A head-mounted wearable audio output device that intelligently adjusts audio output based on detected user activity and head orientation using sensors like accelerometers and gyroscopes
Data Source
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AI summary
A method performed by a head-mounted wearable audio output device is provided. The audio output device is worn on a head of a user and includes at least one sensor. The device detects a user activity based on motion of the user' s body using the at least one sensor. The devices detects an orientation of the head of the user is one of upward or downward using the at least one sensor. The devices controls at least one of: a level of attenuation applied to external noise or audio output based on the detected user activity and the detected orientation of the head of the user.