Research For The Acoustics Environment Of Modern Residential Living Room

Housing comfortableness is an important symbol for weighing the people's quality of life height, but the living room whether having good acoustic environment affects people's leisure and entertainment feelings in the very great degree. In recent years, along with family theaters and digital televisions rapid popularization, in order to satisfying people's appreciates for listening music,watching movie and digital television in the living room, the living room acoustic environmental research has become an urgent topic which needs to solve in modern housing design in our country. The western developed countries had conducted the related research in the 20th century 70⁸0 ages,but the domestic literature relative materials are also less. The goal of article study lies in carrying on the diagnosis in view of our national condition at present, for the residential building and the interior decoration design proposing the basic principles and the suggestions for obtaining high grade acoustic environment in living room.The paper on the predecessor fundamental research base, analyzing the acoustic appraisal parameter contains: the reverberation time and transmission frequency characteristic, early decay time(EDT), clarity(C₅₀,C₈₀), sound coloration and background noise, and their idiographic manifestation and particularity in small space room. On grasping massive data in the current Chongqing market base, after statistical analysis and contrast research, dividing into three kinds: the relative independent, connecting the dining room, the audiovisual studio independently. Simultaneously combining the literature materials typical living room spot inspection, the acoustics condition commonly used sound absorbing materials at present, furniture arrangement and decorations degree and so on has done the comprehensive investigation and research.In actual test, taking the Chongqing television station's professional audition room to the reference standard, after that carrying on the spot measurement according to the different type living room:â‘ In various rooms gate closure situation, testing each acoustics parameters in the living room. Research the closed living room the reverberation time and EDT, clarity C₅₀,C₈₀ the concrete manifestation in the small room; Simultaneously, emphatically analyzing the multi-sound tracks system's transmission frequency characteristic; â‘¡Opens various rooms gate in turns, carries on surveys once more separately, main analyzing living room reverberation time and EDT, C₅₀ and C₈₀, as well as STI or (RASTI) change in the acoustical coupling process.On the mass data analysis foundation, studing the coupling spaces to the living room sound environment influence, obtaining the first and second kind of living rooms has the different reverberation rules. To the reverberation time frequency characteristic and the clarity relations, the sound absorbing materials in different place, and Clarity C₅₀ and C₈₀ in small room and big main hall, obtaining the credible conclusion after the theory and the data analysis. On the generalized analysis research foundation, the paper in view of the different type living room and different use demand, separately proposing the interior decoration designing, as well as the family theater system places and so on principles and the questions needing attention. Briefly elaborated the living room sound environment designing methods and steps taking household D for the example. In the end, let the different scale and different household housing all can create high grade acoustic environment in the living room, providing a good culture to move the place, satisfying the people's needs of spiritual life.