Dynamic Audio Channel Assignment Based on User Position
Solution Overview
Problem
Existing multi-channel audio systems with stationary speakers fail to provide optimal sound experience as they do not account for the dynamic position and direction of the user, leading to suboptimal sound distribution.
Innovation Solution
A method and apparatus that detect user position and direction information to dynamically generate and distribute sound information across available sound output devices, allowing for adaptive sound redistribution based on the user's location and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If stationary speakers are used in existing multi-channel audio systems, then the system structure is simple and stable, but the sound distribution is suboptimal because it does not account for dynamic user position
Solution Approach 1:
The patent applies dynamics by transitioning from a static speaker configuration to a dynamic system where sound distribution is continuously adjusted based on real-time user position detection. The system dynamically redirects audio channels according to the user's movement, making the audio experience adaptive rather than fixed.
Solution Approach 2:
The patent implements feedback by using user position detection to continuously monitor and respond to changes in user location. The system processes position information and adjusts sound distribution in real-time based on this feedback, creating a closed-loop system that adapts to user movement.
2Ease of operation
If fixed channel positions are used, then the audio processing is simple, but the sound experience is not optimal when user position changes
Solution Approach 1:
The system dynamically adjusts audio channel assignments based on real-time user position detection. Instead of fixed channel mappings, the system creates dynamic correspondences between detected user position and audio output channels, optimizing the sound experience as users move through the space.
Solution Approach 2:
The patent changes the parameter of channel assignment from fixed to variable based on user position. The system modifies audio routing parameters according to detected user location, transforming the static audio processing into a dynamic process that adapts to user movement.
3Reliability
If multiple speakers are deployed to provide immersive sound, then the sound quality improves, but the system complexity increases
Solution Approach 1:
The patent makes the speaker system universal by enabling any speaker in the array to serve multiple functions depending on user position. Each speaker can dynamically assume different channel roles (front, rear, center) based on where the user is located, making the system highly versatile without requiring dedicated speakers for each function.
Solution Approach 2:
The system dynamically assigns functional roles to speakers based on real-time user position detection. Rather than having fixed speaker assignments, the system creates dynamic mappings that allow the same physical speaker to fulfill different audio functions as users move, optimizing sound quality while managing system complexity.
Data Source
AI summary
A method for detecting a plurality of available sound output devices when audio data is played back, and for detecting user position information and user direction information is provided. The method includes generating a plurality of pieces of sound information from the audio data, based on at least one of the detected user position information and the user direction information, and distributing each of the plurality of pieces of sound information to a corresponding sound output device from among the plurality of sound output devices.