Attention-Sensing Audio Processing With Vision And Time-of-Flight
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Solution Overview
Problem
Existing information handling systems lack the ability to dynamically adjust audio properties based on the position and attention of a user, leading to suboptimal audio experience during interactions such as video conferences.
Innovation Solution
Implementing a vision system with a low-power camera and time-of-flight sensor to determine the user's position and gaze direction, coupled with a signal processor to adjust audio properties like volume, frequency, and spatial effects based on this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio properties are adjusted based on user position and attention, then audio fidelity and user engagement are improved, but device complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The patent combines multiple sensors (camera, microphones, speakers) into an integrated information handling system. The camera captures images of the user, microphones capture audio signals, and speakers output audio, with a processor coordinating all components to adjust audio properties based on user position and attention, thereby improving audio fidelity while managing system complexity through integration.
Solution Approach 2:
The processor acts as an intermediary that receives image data from the camera, determines user position and attention, and then adjusts audio signal properties accordingly. This mediator coordinates between the sensing system (camera) and the actuation system (speakers), enabling dynamic audio adaptation without requiring direct complex interaction between all components.
2Measurement precision
If a vision system with camera and time-of-flight sensor is implemented to determine user position, then user position detection accuracy is improved, but use of energy increases
Solution Approach 1:
Instead of continuously operating the camera and time-of-flight sensor at full capacity, the system periodically captures images and updates user position information. The processor determines user position based on captured images and adjusts audio properties at appropriate intervals, reducing energy consumption while maintaining adequate measurement precision for dynamic audio adaptation.
Solution Approach 2:
The system uses the existing camera and display device infrastructure to infer user position and attention. By analyzing images captured by the camera and correlating them with display content, the system determines user engagement without requiring additional high-power sensing hardware, thereby reducing energy usage while maintaining detection accuracy.
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
Enhances audio fidelity and user engagement by dynamically adapting audio settings to the user's position and attention, improving the overall interaction experience.
Implementation Method 1
a vision system with a low-power camera and time-of-flight sensor to determine the user's position and gaze direction
Data Source
AI summary
A method may include capturing an image at a camera included at an information handling system, the camera coupled to a vision system. A position of a user relative to a display device may be determined based on analysis of the image by the vision system. The method may further include adjusting properties of an audio signal provided to a speaker based on the position of the user.