With the increasing number of speakers in vehicles, audio signals are prone to interference, leading to a chaotic sound field and unclear sound. High-order audio effects can achieve precise sound field modeling and speaker calibration for different cabin acoustic environments, reducing coloration and distortion, resulting in clearer and purer sound, and creating an immersive surround sound experience. Furthermore, through transient control and bass enhancement techniques based on psychoacoustics, the low-frequency impact and elasticity are improved, delivering powerful and dynamic bass.