Terminal Volume Control Using Scene-Aware Sound Composition
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Solution Overview
Problem
Existing volume adjustment methods for user terminals, such as mobile phones, fail to accurately match the ring tone and earpiece volumes to the user's current scenario due to incorrect environmental sound analysis, often mistaking human sounds for noise.
Innovation Solution
A method and apparatus that collect and analyze sound signals to determine the composition of sounds, including blank, human, and noise components, to accurately identify the scene mode and adjust the volume accordingly, using volume adjustment coefficients based on pre-stored correspondences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ring tone volume is manually adjusted or adjusted based on simple scene modes, then the volume can be changed according to different occasions, but the volume adjustment accuracy is not high and does not conform to the real scenario
Solution Approach 1:
The patent segments the environmental sound into different components (human sound, noise, blank sound) and analyzes each component separately. By dividing the sound analysis into distinct categories with specific frequency ranges and characteristics, the system can accurately identify the scene mode without requiring complex overall analysis, thus improving volume adjustment accuracy while controlling complexity.
Solution Approach 2:
The patent implements feedback by continuously monitoring environmental sound and dynamically adjusting ring tone volume based on the analyzed scene mode. The system uses pre-stored correspondence between scene modes and volume adjustment coefficients to provide real-time feedback control, ensuring the volume accurately reflects the real scenario while maintaining automatic adaptation.
2Extent of automation
If environment sound decibels are used to determine ring tone volume, then the volume can be automatically adjusted, but human sounds are mistakenly identified as noise leading to incorrect volume settings
Solution Approach 1:
The patent applies local quality by assigning different analysis criteria to different sound components. Human sounds are identified by specific frequency ranges (85-255 Hz fundamental frequency) and characteristics, while noise is identified by other frequency ranges and properties. This localized analysis approach allows automatic volume adjustment while accurately distinguishing between human sounds and noise, preventing misidentification.
Solution Approach 2:
The patent changes parameters by analyzing multiple characteristics of environmental sound including frequency distribution, sound intensity, and temporal patterns. By examining these different parameters rather than relying solely on overall decibel levels, the system can accurately identify scene modes and distinguish human sounds from noise, enabling precise automatic volume adjustment.
Data Source
AI summary
A volume adjustment method and apparatus, and a terminal is presented. Perform analysis on the collected sound signal surrounding a user terminal, to obtain composition information, where the composition information includes sound types included in the sound signal and proportions of sounds of the various types, and the sound types include blank sound, human sound, and noise; determine a current scene mode of the user terminal according to the composition information; and adjust volume of the user terminal according to the determined scene mode, thereby significantly reducing occurrence of a case, caused by mistaken determining of the scenario, in which play volume adjustment does not conform to the scenario, and enhancing user experience.