校园声景地图的数据处理与可视化设计

Data processing and visual design of campus soundscape map

针对声景研究存在的缺少对声景的形象直观表达的问题,该文将声景理论与地图结合起来,提出了一种声景的可视化方法——声景地图。声景地图是一种表示不同地理环境条件下声景变化特征的专题地图。基于声景模型、声源分类模型和情绪二维模型等明确了声景地图的4类描述指标,包括声源类型、声环境情绪、声强级和声音频率,设计了一种声环境数据采集和处理的技术方案;基于地图感受论,对声景地图进行了科学的符号设计和合理的显示设计;以校园为声景研究实例,采用校园声景地图对校园声景进行了定量及定性分析,为校园声环境的设计与改善提供了参考。

In view of the lack of visual representation of soundscape in soundscape research,a visualization method of soundscape map was proposed combining soundscape theory with map in this paper.The soundscape map is a thematic map that represents the changing characteristics of soundscape under different geographical conditions.Based on sound scene model,sound source classification model and two-dimensional emotional model,four categories of description indicators of sound scene map were defined,including sound source type,sound environment emotion,sound intensity level and sound frequency.A technical scheme for sound environment data acquisition and processing was designed;Based on the theory of map perception,scientific symbol design and reasonable display design of soundscape map were carried out;Taking the campus as an example of soundscape research,a quantitative and qualitative analysis of the soundscape of the campus was made by using the soundscape map of the campus,which provided a reference for the design and improvement of the campus sound environment.