家庭听音室的声学装修与混响特性比较研究

Comparative Study on Acoustic Decoration and Reverberation Characteristics of Family Listening Rooms

很多高保真音响爱好者根据主观听音感受来调整家庭听音室的布局和装修,期望获得良好的音质。但主观感受受到很多非声学因素的影响,仍然需要以客观的音质参数测量为依据找到正确的改进方向。混响特性的测量是所有音质参数中最重要的,因此对随机抽取的7个音响爱好者的家庭听音室进行详细的混响时间与早期衰变时间测量,并对这两种音质参数进行横向对比研究找出共性。研究发现,大部分家庭听音室都存在低频混响过长的缺陷,存在若干频段吸声过强或不足的情况,因此需要在家庭听音室的吸声材料选择及布置位置等方面进行调整,改善听音感受。

Many Hi-Fi audio enthusiasts adjust the layout and decoration of the home listening room according to their subjective listening experience,hoping to obtain good sound quality.However,subjective perception is affected by many non-acoustic factors,and it still needs some objective measurement of sound quality parameters to find the correct direction of improvement,among which the measurement of reverberation characteristics is the most important.In this paper,detailed measurements of reverberation time and early decay time were made in 7 randomly selected family listening rooms,and some commonalities were found between the two sound quality parameters.The study shows that most of the family listening rooms have the defects of too long low-frequency reverberation,and some frequency bands are too strong or insufficient.Therefore,it is necessary to improve the selection and arrangement of sound absorbing materials.