从单声道到沉浸声:技术演进中的电影声音表达研究OA

The evolution of film sound systems has continuously accompanied changes in cinematic narrative methods and audience perceptual structures.From monophonic sound to multichannel surround sound,and further to three-dimensional sound field systems,sound has gradually broken away from flat and centralized modes of reproduction,gaining greater freedom and expressive potential within spatial dimensions.To examine the transformation of film sound expression throughout technological development,this study takes the progression from mono sound and multichannel surround sound to immersive audio systems represented by object-based 3D sound fields as its research focus.Through a system-atic review of film sound technologies,combined with analytical approaches involving spatial sound construction,sound im-age localization,and sound field organization,the study compares the characteristics and differences of sound expression across different sound formats.The findings indicate that,as sound technology evolves from single-channel reproduction toward multichannel and spatialized systems,sound expression increasingly transcends centralized and planar limitations,achieving significant improvements in spatial distribution,structural layering,and movement representation.Different sound formats correspond to different sound field construction logics and expressive strategies.Further analysis reveals that im-mersive sound systems centered on object-based audio demonstrate greater flexibility in precise sound localization and multi-terminal adaptation.