基于主成分计权的路噪声品质开发

Road Noise Quality Development Based on Principal Component Weighting

本文通过对心理声学参数进行主成分分析法,建立了主客观关联模型,并以此绘制烦恼度等值曲线,提出主成分计权的方法,在频谱上直观展示声品质的重点优化频率。本文提出的路噪声品质开发流程主要包括:获取目标客户代表性人群的路噪主观分值,基于心理声学参数的主成分建立主客观关联模型,绘制烦恼度等值曲线,对噪声频谱进行主成分计权得到路噪问题频率。本流程具有工作量小敏捷性高可以直接指导工程开发的优点。

This paper establishes a subjective-objective correlation model through the principal component analysis method of psychoacoustic parameters,and draws the annoyance equivalent curve based on this method,and proposes a method of principal component weighting to visually display the key optimization frequencies of sound quality on the spectrum.The road noise quality development process proposed in this paper mainly includes:obtaining the subjective road noise scores of the representative population of the target customers,establishing a subjective and objective correlation model based on the principal components of psychoacoustic parameters,drawing an annoyance degree contour curve,and analyzing the principal components of the noise spectrum.Weighted to get the road noise problem frequency.This process has the advantages of small workload and high agility,which can directly guide engineering development.