基于心理声学参数车门关闭声品质的研究

摘要

This paper collected front door shutting signal of three different models of domestic car, analyzed their linear sound pressure level and A power sound pressure level, combined with special loudness curve, which could be seen that loudness was importance when evaluating sound quality. Through analyzing the sharp degree and time-frequency signal, the importance of time-frequency analysis in determining door shutting good or bad is analyzed, so it can well reflect the ability distribution and attenuation.%　　本文采集某国产三种不同型号的轿车前门关门声信号，并对此进行线性声压级和A记权声压级频谱分析，结合特种响度曲线，可以看出响度在评价关门声声品质的重要性。通过对关门声信号的尖锐度、时频信号分析看出，时频分析在确定关门声好坏的重要性，能很好体现其能力分布和衰减情况。