Active sound design and sound field equalization for electric vehicles using an order synthesis algorithm and IIR filter-based correction

Xueqing Zhang
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China
Jianjiao Deng
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China
Jinliang Bi
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China
Hao Li
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China
Chao Li
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China
Chengpeng Zhang
China First Automobile Group Co., Ltd., Jilin Provincial Key Laboratory of Automotive Vibration and Noise, Changchun 130000, China

Article ID: 3903

Keywords: automotive active sound, order synthesis method, sound field equalization, new energy automobile

Abstract

Active Sound Design (ASD) can enhance the driving experience. At present, the algorithms for synthesizing sound waves have problems of poor robustness and poor sound quality. This study overcomes these problems by introducing a vehicle active sound design order synthesis algorithm that is based on linear interpolation to define a model for the variation of amplitude and frequency with speed. An IIR filter-based sound field equalization and timbre correction method is used to perform frequency-domain correction of four seats in a vehicle to reduce phase interference phenomena. A hardware system based on Field-Programmable Gate Array (FPGA) and Advanced RISC Machines (ARM) was built to configure an electric vehicle sound system. Tone correction, feasibility and stability verification of algorithms, and subjective evaluation of active sound are performed through testing. The Frequency Response Standard Deviation (FRSD) of the four measurement points is used to measure the quality of tone correction, which is improved by 22.9%. The commissioning of the active sound waves based on the hardware system has a frequency response error rate of 5% between the simulated and measured data in the frequency band 0–6,000 Hz. The subjective evaluation of the sound based on four dimensions is used to measure the sound quality and scores 8 points.

Published

2026-07-10

How to Cite

Zhang, X., Deng, J., Bi, J., Li, H., Li, C., & Zhang, C. (2026). Active sound design and sound field equalization for electric vehicles using an order synthesis algorithm and IIR filter-based correction. Sound & Vibration, 60(4). https://doi.org/10.59400/sv3903

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Issue

Vol. 60 No. 4 (2026)

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Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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