【作者】 尤晋闽； 陈天宁；

【Author】 You Jinmin,Chen Tianning

【机构】 西安交通大学机械工程学院；

【摘要】 基于心理声学基本理论,通过实例计算出两种不同吹风机的噪声声品质客观评价指标及心理声学烦躁度,并对噪声样本进行FFT连续谱和1/3倍频程谱对比分析。分析结果表明:A声级接近相等的两噪声样本在心理声学参数值上却不同,且给人的主观感觉也有较大差异;心理声学烦躁度作为声品质客观评价的综合性指标能够比A声级更好地反映机电产品噪声对人的实际影响。更多还原

【Abstract】 The objective evaluation labels of noise sound quality and phychoacoustics annoy- ances of two different hairdryers are calculated based on basic phychoacoustics theoretics.The FFT spectrums and the 1/3 octave spectrums of two noise samples are also analysed comparatively.The analysis results indicate that the phychoacoustics parameters of the two noise samples are different despite that their dB(A)are nearly to be equal.The subjective feelings are also distinguishing. The phychoacoustics annoyance acting as a comprehensive label of sound quality evaluation has a good advantage in reflecting the real influence of noise to person over the dB(A).更多还原