Strategy and implementing techniques for the sound quality target of car interior noise during acceleration—lIU, 2021
The subjective experience of car driving is mostly affected by noise, so the interior sound quality must be developed based on the vehicle's market placement. "Powerfulness" describes acceleration sound quality. Its subjective evaluation approach and main influence factors aren't exact enough to guide car interior sound quality design. This paper studies subjective sound quality evaluation and car interior noise target during acceleration. First, 50 pairs of antisense words describing "Power" are analyzed using the Factor Analysis Method. Trilling, richness, and smoothness can be used to evaluate sound quality. Second, because it is difficult to accurately evaluate accelerating noise with time-varying non-steady-state features using the normal semantic differential method, the Continuous Assessment by Predefined Categories (CAPC) subjective evaluation method is used to evaluate 24 car interior sound samples with different sound quality characteristics during acceleration. Objective sound sample parameters are calculated and correlated with subjective evaluations. Results reveal that subjective evaluation dimensions are related to frequency components, order ratio, and linearity of sound samples. Third, a development procedure for powerful sound quality includes building sound modulation software and synthesizing sound samples with diverse parametric features. Statistical approaches propose Order Relay and Frequency Retention based on the audition and evaluation of generated sound samples. The SVM model checks feature rationality. Finally, tweaking the intake system improves automobile interior sound quality. This paper's study can be used to improve automotive sound quality during acceleration.
Liu, Z., Li, X., Du, S., Chen, W., Shao, J., & Zheng, Q. (2021). Strategy and implementing techniques for the sound quality target of car interior noise during acceleration. Applied Acoustics, 182, 108171. https://doi.org/10.1016/j.apacoust.2021.108171
