Stereo System Audio Field Adjustment via UWB Positioning

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Solution Overview

Problem

Existing audio systems require manual adjustment of the audio field settings to maintain optimal audio reception, which is cumbersome and often requires professional expertise.

Innovation Solution

An audio field adjusting method and apparatus that utilizes Ultra-Wide Band (UWB) modules in sound boxes to determine and dynamically adjust the audio field center position based on the user's position, ensuring accurate and automatic alignment of the audio field.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual adjustment of audio field settings is performed, then audio field effect can be optimized, but operation complexity increases and requires professional expertise

Engineering Contradiction:
Improveaudio field effectVSAvoidadjustment operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The audio system automatically detects user position through UWB modules and self-adjusts the audio field center position without requiring manual intervention. The system serves itself by using the user's mobile terminal as the reference point for automatic positioning and adjustment, eliminating the need for professional operation while maintaining optimized audio field effect.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system establishes a feedback loop where the UWB modules continuously detect user position, the processor calculates the audio field center position based on this feedback, and the audio field parameters are automatically adjusted. This closed-loop feedback mechanism ensures the audio field effect is continuously optimized based on real-time user position information.

Inventive Principle:
Principle #23Feedback

2Reliability

If manual adjustment is required to maintain audio effect during user movement, then audio reception quality is improved, but time consumption increases

Engineering Contradiction:
Improveaudio reception qualityVSAvoidadjustment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The audio field center position is dynamically adjusted in real-time based on user movement. The system continuously tracks user position through UWB modules and automatically updates the audio field configuration, transforming the static manual adjustment process into a dynamic automatic adaptation process that maintains audio reception quality without time loss.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system maintains continuous audio field optimization by continuously detecting user position and continuously adjusting the audio field center position. This uninterrupted automatic adjustment ensures audio reception quality is maintained throughout user movement without requiring periodic manual interventions, eliminating time loss associated with repeated adjustments.

Inventive Principle:
Principle #20Continuity of useful action

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

The solution provides an improved audio field effect by accurately adjusting the audio field center position in real-time with the user's movement, eliminating the need for manual adjustments and ensuring optimal audio reception without requiring professional expertise.

Implementation Method 1

obtain a user position fed back by a UWB module in each of the plurality of the sound boxes

Methodology Applied
Scientific EffectUltra-Wide Band (UWB) electromagnetic wave detection: Electromagnetic Induction

Data Source

PatentEP3890360B1Audio field adjusting method and apparatus, and storage medium
Publication Date: 2025.04.30 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3890360B1 patent drawingFigure 1~2
  • EP3890360B1 patent drawingFigure 3~5
  • EP3890360B1 patent drawingFigure 6

AI summary

The present disclosure provides an audio field adjusting method, an audio field adjusting apparatus and a storage medium. The audio field adjusting method is applicable for a stereo system, the stereo system contains a plurality of sound boxes, and each of the plurality of sound boxes includes an Ultra-Wide Band (UWB) module, the method includes: obtaining (S11) a user position fed back by the UWB module in each of the plurality of the sound boxes; determining (S12) an audio field center position according to the user position fed back by the UWB module in each of the plurality of the sound boxes; and according to the audio field center position, adjusting (S13) an audio field position of each of the plurality of the sound boxes, such that an audio field position of the stereo system is the audio field center position.