In-vehicle multi-working-condition active sound control method and system based on masking effect

By identifying the driving conditions of electric vehicles and adjusting the duration stretching rate and output intensity of active sound segments, combined with the auditory masking effect, the problem of discontinuous sound quality and auditory discomfort in electric vehicles in existing technologies has been solved, achieving a smooth transition and coordinated output of in-vehicle sound, and improving the driving experience.

CN121603836AActive Publication Date: 2026-03-03JILIN UNIVERSITY
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Patent Information

Application Number
CN202610105656.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-03-03
Estimated Expiration
2046-01-27

AI Technical Summary

Technical Problem

Existing active sound control technology is difficult to meet the comprehensive requirements of sound quality continuity and comfort under complex driving conditions in electric vehicles. It has a limited selection of sound types, lacks consideration for continuous switching between multiple operating conditions, and does not fully consider the masking relationship between active sound and background noise, resulting in auditory fatigue and discomfort.

Method used

By identifying vehicle driving conditions, adjusting the duration stretching and output intensity of active sound segments, and combining this with auditory masking effects, adaptive adjustment of active sound and background noise is achieved, ensuring smooth transition and coordinated output of sound under different operating conditions.

Benefits of technology

It achieves good coordination between active sound and background noise, improves the stability and comfort of the in-vehicle sound environment, reduces the risk of auditory fatigue, and enhances the intuitiveness of the vehicle's dynamic perception and the overall acoustic experience.

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Abstract

The invention discloses an in-vehicle multi-working-condition active sound control method and system based on a masking effect. The method comprises the steps that the current driving working condition of a vehicle is recognized according to vehicle speed changes; dynamically controlling the duration of the active sound in the vehicle based on the working condition, so that the time characteristic of the active sound is continuously adjusted along with the change of the working condition of the vehicle; meanwhile, background noise information in the vehicle is collected, and the amplitude of the active sound is adaptively adjusted based on an auditory masking effect, so that the active sound keeps good perceptibility and auditory comfort under different working conditions and different noise levels; and in the working condition switching process, smooth transition control is performed on the duration time and the amplitude of the active sound so as to realize continuous output of the active sound. By means of the mode, the problems of sound sudden change, masking unbalance or auditory interference occurring when the working condition changes in an existing active sound production scheme can be effectively avoided, and the stability and comfort of the in-vehicle sound environment under different operation conditions are improved.
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