Ambient-Noise-Adaptive Audio Playback for Listening-Position Control

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Solution Overview

Problem

Existing audio playback systems fail to dynamically adjust volume based on ambient noise and user position, leading to inflexible and unintelligent volume adjustments.

Innovation Solution

An audio playback method that determines ambient noise information and listening position within a target space to dynamically adjust the volume of a second audio signal, using neural networks for noise reduction and sound source separation, and applying signal-to-noise ratio tables and equalizer technologies for precise volume control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed volume playback is used, then device complexity is reduced, but adaptability to different environments deteriorates

Engineering Contradiction:
Improveadaptability to ambient noiseVSAvoidvolume adjustment system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system automatically detects ambient noise levels and adjusts playback volume without user intervention. The noise detection module continuously monitors the environment and the volume adjustment module autonomously modifies playback parameters based on detected noise characteristics, enabling the system to serve itself rather than requiring manual control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a closed-loop feedback mechanism where the noise detection module provides real-time information about ambient sound levels to the volume adjustment module. This feedback loop enables continuous adaptation of playback volume based on changing environmental conditions, resolving the contradiction between fixed simplicity and adaptive complexity.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If manual volume adjustment is used, then device complexity is reduced, but listening experience in varying environments deteriorates

Engineering Contradiction:
Improvevolume control simplicityVSAvoidlistening experience consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The volume control system operates autonomously by detecting ambient noise and automatically adjusting playback levels. This eliminates the need for manual user intervention while ensuring consistent listening experience across varying environmental conditions, thereby maintaining ease of operation without sacrificing reliability.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If dynamic volume adjustment based on noise is implemented, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improveenvironmental adaptabilityVSAvoidaudio processing system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The audio processing system is divided into distinct functional modules: a noise detection module that specializes in environmental sound analysis, and a volume adjustment module that specializes in playback parameter modification. This segmentation allows each module to perform its specific function efficiently without requiring the entire system to be overly complex.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically changes playback parameters (volume level) based on detected noise characteristics. By focusing parameter changes on the specific attribute that needs adaptation (playback volume) rather than overhauling the entire audio system, the patent achieves environmental adaptability with minimal increase in overall device complexity.

Inventive Principle:
Principle #35Parameter changes

4Speed

If real-time noise detection is implemented, then volume adjustment timeliness improves, but processing resources increase

Engineering Contradiction:
Improvevolume adjustment response speedVSAvoidprocessing energy consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The noise detection module serves multiple functions: it detects ambient noise levels, characterizes noise types, and provides input for volume adjustment decisions. By making this single module multi-functional, the system achieves real-time responsiveness without requiring separate processing systems for each function, thereby controlling energy consumption while maintaining speed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250272054A1Audio playback method and apparatus, computer readable storage medium, and electronic device
Publication Date: 2025.08.28 XG TECHNOLOGIES PTE LTD
  • US20250272054A1 patent drawing
  • US20250272054A1 patent drawing
  • US20250272054A1 patent drawing

AI summary

Disclosed in embodiments of the present disclosure are an audio playback method and apparatus, a computer readable storage medium, and an electronic device. The method includes: determining ambient noise information corresponding to a first audio signal, where the first audio signal is obtained by performing audio acquisition for a target space; acquiring listening position information for the target space; and playing, based on the ambient noise information and the listening position information, a second audio signal. In the embodiments of the present disclosure, ambient noise information for a target space may be sensed in real time, and a volume at which an audio signal is played in the target space may be dynamically adjusted according to the ambient noise information.