基于生态声学的虚拟现实影视声景指数量化

针对目前虚拟现实影视作品中声音设计过程中缺乏客观量化指标、过于主观的问题,提出一套基于生态声学的虚拟现实影视声景量化方案.依据生态声学研究理论基础,方案将影视声景元素根据其发声动机划分成自然声、人为声和地球声三个部分,在该分类的基础上,通过计算各类别之间的比例来量化影视声景设计中关于地点、时间、天气等因素.实验样本来源...

A QUANTITATIVE ALGORITHM FOR FILM SOUNDSCAPE IN VIRTUAL REALITY FILM BASED ON ECOLOGICAL ACOUSTICS

In response to the demand for soundscape design in virtual reality movies,this paper proposes a film-based soundscape index algorithm based on ecological acoustics to compensate for the lack of objective quantitative indicators in traditional solutions to assist designers in accurately grasping the proportion of each element in the soundscape.First,the soundscape elements of film sound were divided into biophonic region,anthrophonic region and geophonic region according to their characteristics.Secondly,based on the classification,an algorithm for quantifying the ratio of anthrophonic region to biophonic region,the biological activity in this landscape,and the ratio of the geophonic region in the application scenario of film soundscape reconstruction was proposed.The final calculated results were compared with the objective actual situation and subjective evaluation results.The experimental results show that the soundscape index calculated by this algorithm is in line with the objective situation,and matches the subjective feelings of most audio designers.The algorithm data results are reliable,and it can assist the production of sound and sound scenes in virtual reality movies.