An adaptive audio control method and system for in-vehicle scenarios

By combining an in-vehicle microphone array and a 3D sound field model with a driver behavior profile, the in-vehicle audio system is dynamically adjusted, solving the problem that the in-vehicle audio system cannot be optimized in real time, and achieving personalized audio control and improved driving safety.

CN120972580BActive Publication Date: 2026-04-21QILIXING TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202511347603.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-04-21
Estimated Expiration
2045-09-19

AI Technical Summary

Technical Problem

Existing in-vehicle audio systems cannot optimize in real time according to environmental changes and user status, resulting in large differences in auditory comfort, a lack of personalized service capabilities, and difficulty in ensuring the clarity of important audio and driving safety in noisy environments.

Method used

Audio signals are collected by an in-vehicle microphone array to construct an in-vehicle baseline audio stream and perform dynamic range compression and frequency response balancing. Combined with a three-dimensional sound field model of the cabin and a driver behavior profile, dynamic adaptive adjustment is achieved to optimize sound quality gain and meet personalized needs.

Benefits of technology

It enables personalized audio control under different driving conditions and environments, improves audio clarity and comfort, ensures driving safety, and avoids auditory fatigue and masking of important audio.

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Abstract

This invention relates to the field of audio control technology, and more particularly to an adaptive audio control method and system for in-vehicle scenarios. The method includes the following steps: acquiring in-vehicle audio signal streams based on an in-vehicle microphone array, performing dynamic range compression and frequency response balance optimization to construct an in-vehicle reference audio stream; analyzing the acoustic characteristics at multiple locations based on the in-vehicle reference audio stream, and performing acoustic transmission path distribution evolution to construct a three-dimensional sound field model of the vehicle cabin; extracting multi-dimensional driving behavior data, performing dynamic driving preference modeling, and constructing a driving behavior profile; calculating audio sensitivity based on the driving behavior profile, and dynamically adaptively adjusting it based on the three-dimensional sound field model of the vehicle cabin to construct dynamic audio adjustment parameters; applying safety optimization constraints and adaptive sound quality gain to the dynamic audio adjustment parameters, and outputting the final in-vehicle audio. This invention adjusts audio parameters in real time based on the vehicle scenario, improving driving safety and auditory experience.
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