耳塞小常识-生物振膜
对于耳塞而言,最重要的地方莫过于振膜……所以,振膜的性能直接影响耳塞的表现!! 由于振膜的主要作用是震动,影响震动动态表现的一个是弹性,另一个是惯性。刚度足得振膜,弹性表现呈线性的振膜其震动动态必定比较好,可以合理的还原/回放声音信号,其音频表现也会平衡;而重量轻的振膜,其运动惯性必定比较小,所以至其声音的清晰度/细节部分会表现得很好。与予以上两个原因,有两种技术……其一是蓝宝石蒸汽镀膜,对应于前者,提高振膜刚度,以达到平衡/真实的效果,其代表耳塞有AIWA HP V743和SONY MDR E868;其二是生物材料振膜,对应于后者,极轻的振膜有利于清晰度的提高和高频段的还原,其代表耳塞是SONY MDR E888…… 但是,每一种技术都有其缺陷的地方,比如蓝宝石蒸汽镀膜,其实际频响范围受到其重量的影响,偏向于损失高音……而生物振膜,由于其重量太轻/厚度太薄,比较容易破损,而声音信号的低频往往需要膜片驱动很多的空气以及很大的气压,故这种设计的耳塞只能牺牲低音(不然坏的很快……)。这也是743/868得高音表现有时候不如理想;而888要用开放/漏音结构一损失掉低频部分,减轻振膜的负担……
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I read over your blog, and i found it inquisitive, you may find interesting. So please
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