On The Development Of 3D Surround Sound Technology In Theater

Since twenty-first Century,3D cinema surround sound technology has been rapiddevelopment. Compared with the traditional surround sound technology,3D cinema surroundsound can bring the audience positioning, precise voice more delicate sound details and moreimmersive experience of hearing, the hearing is the traditional surround mode incomparable.In the view of present3D cinema surround sound technology, construction can besummarized in the physical field: single loudspeaker system, double loudspeaker system, threespeaker system and multi speaker system; its technical principles can be summarized as: binauralhearing phantom virtual auditory playback technology, based on the theory of Huygens wavefield synthesis playback technology, based on the HRTF head to reflect the transfer functionreproduction technology and many kinds of theory of hybrid technology based on. At the sametime,3D surround sound production technology has formed three models: the traditional channelfor the film3D sound technology, the concept of the movie3D sound production concept to soundbeds and object for the production process, and application of3D mixed film production process.This paper introduces the development process of theater sound system from mono to3Dsurround sound, the current mainstream cinema3D surround sound system are in detail, includingthe BARCO AURO3D surround sound, DOLBY ATMOS, IOSONO holographic sound, and acomparative analysis of the characteristics of various3D surround sound technology, evaluationthe development prospects of the business.With the application of3D cinema surround sound technology, digital audio coding formatand the movie sound creation process will change greatly,3D cinema surround sound systemdevelopment and innovation is to promote the twenty-first Century audio technology.