The Research On Acoustical Design Of Multi-purpose Theater Mainly For Music Performance

The fundamental function of Multi-purpose theater mainly for music performance is acquiring for good acoustics,which is adapts to music performances. To get good acoustics is very difficult,it depends not only on the acoustic design of the level of theory and practice,but also with the owners, architectural design, HVAC, structure and other professional,involving many factors. There are two main difficulties and importances in acoustical design of this type of theater.One is that the auditorium and the stage how to be adapts for the natural sound of music performances. Different dramas requires of different acoustic conditions, consequently, the other is that the auditorium how to take into account the acoustics conditions of the other dramas.In this paper, Author reseraches on acoustical design of Multi-purpose theater mainly for music performance, Especially, studing difficulties and importances. The article focuses on the following aspects:⑴Fristly, the article introduce theater buildings construction,acoustic design overview,problems as well as the contents of this article.⑵The article briefily discusses specificity of Multi-purpose theater building mainly for music performance.⑶This article analysis of the characteristics of acoustical design of the this type theater, technical requirements and acoustics parameters.Accorrding to the characteristics of acoustical design and existing theory and practice results, the article mainly discuss on the following aspects. Firstly, How to design figure of auditorium, making sure that the acoustic characteristics of inner surface of the auditorium and auditorium's figure are adapts for the natural sound of music performances. Secondly, How to choice and control reverberation time, making sure that reverberation time and frequency characteristics are adapts for music fullness and voice clarity.Thirdly, How to control environmental noise, making sure that background noise does not interfere with the the natural sound of music performances.Fourthly, the article discuss the problemes about stage acoustic condition as well as response measures. Including, how to design stage sound reflector. the article expounds a brief introduction of designing of variable acoustic conditions,in addition, Adjustable sound absorption, adjustable volume and electro-acoustic technology.⑷Finally,The article described in detail two examples of acoustical designning of Multi-purpose theater mainly for music performance.