The Technology And Research Of Muti-channel Sound For Theartre

Begin to prepare to construct in 1998 by the national ministry of culture is responsible for the national grand theatre, after eight years of preparation time, a lot of basic research work on preparatory office, writing a construction design plan. National grand theatre in 2007 officially open their doors, due to its special geographical location, the capital, Beijing tiananmen square on the west side of the road, adjacent to the great hall of the people, to build hospital were given at the beginning of the special historical mission, positioning in the international center for the performing arts. Since then, ushered in the round of the climax of theatre construction across the country. Drama professional theater development basic situation of the country's survey data show that by the end of 2013, our country has professional theater, 873, 2013 40500 performances, viewers total m 32.29 million. But the overall look, professional theater total deficiencies, utilization rate is not high, the operation mechanism is not sound, etc. Because the country has not unified professional theatre construction standards, many new theater to theater for reference, and does not take into account the local culture, economic factors, such as design a lot of form, function similar theatre, costly, utilization rate is low, not personal.In the future development of the construction of the theater, in order to avoid the environment, architecture, excess consumption of manpower, money, etc, the author on audio equipment system was fully studied. From the point of sound system development direction, multichannel audio system has a good prospect. Reference to the current world of three kinds of multichannel audio system are introduced with examples, and studies its key technology in theory core- variable acoustic field. Through a careful study of variable acoustic field, and analyzes the eight important parameters affecting the result, mastered the technique of variable acoustic field, further study of three leading sound field control system, the basic work for the practical application. Using the advantage of the work in the grand theater, will study content combined with the actual situation, choose the two projects for actual operation. To opera house sound system has carried on the summary first, then analyzes the use of more pain in the amplification of sound design, and summarizes the problems in the process of practice and experience. At the same time, also invited a number of industry has carried on the subjective evaluation, comments from a professional eye variable acoustic field technology practical application effect, make the practice more has the reference value. Of course also found many problems in the process of research, is not only the technology itself, there is also a construction at the beginning of the need to improve. Is ultimately in order to be able to build better theatre, not only guarantee the quality of products but also, more provide broad space for cultural development.