The invention discloses a virtual bass processing method of a vehicle-mounted system, the vehicle-mounted system and a readable storage medium. The virtual bass processing method comprises the following steps: acquiring an initial audio signal; performing low-frequency processing and frequency domain transformation on the initial audio signal to obtain a first frequency domain signal, and determining a fundamental frequency signal from the first frequency domain signal; delaying the initial audio signal to obtain a first target audio signal; detecting higher harmonics of the fundamental frequency signal, and enhancing the fundamental frequency signal to construct higher harmonics in response to the detection result representing that no higher harmonics exist; performing weighted control on higher harmonics of the fundamental frequency signal to obtain a second frequency domain signal; performing time domain transformation on the second frequency domain signal to obtain a second target audio signal; and fusing the first target audio signal and the second target audio signal to obtain a bass enhanced audio signal. By means of the mode, the low-frequency hearing feeling of the final audio signal is more vivid, and the immersion feeling and the reality feeling of in-vehicle music playing of the vehicle-mounted system are remarkably improved.

    本申请公开了车载系统的虚拟低音处理方法、车载系统、可读存储介质。该虚拟低音处理方法包括:获取初始音频信号;对初始音频信号进行低频处理和频域变换,得到第一频域信号,并从第一频域信号中确定出基频信号;以及对初始音频信号进行延时,得到第一目标音频信号;检测基频信号的高次谐波,响应于检测结果表征无高次谐波,对基频信号进行增强,构造高次谐波;对基频信号的高次谐波进行加权控制,得到第二频域信号;将第二频域信号进行时域变换,得到第二目标音频信号;融合第一目标音频信号和第二目标音频信号得到低音增强的音频信号。通过上述方式,使得最终的音频信号的低频听感更加逼真,显著提升车载系统的车内音乐播放的沉浸感与真实感。


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    Title :

    Virtual bass processing method of vehicle-mounted system, vehicle-mounted system and readable storage medium


    Additional title:

    车载系统的虚拟低音处理方法、车载系统、可读存储介质


    Contributors:
    LIU YU (author)

    Publication date :

    2025-05-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS