Data videos have become a prominent vessel for communicating data to broad audiences, and a common object of study in information visualization. Many of these videos include music, yet the impact of music on how people experience data videos remains largely unexplored. We conducted a preregistered study into the effect of music across three dimensions: persuasion, engagement, and emotion. We showed online participants an existing data video (1) without any music, (2) with its generic default music, and (3) with custom music designed by a professional composer. We found that the default music helped make the data video more persuasive. However, the effects of custom music were more mixed, and we did not find that music increased engagement. In addition, and contrary to our expectations, our participants reported more intense emotions without music. Our study contributes new insights into the intersection of music and data visualization and is a first step toward guiding designers in creating impactful data-driven narratives.

翻译：数据视频已成为向广大受众传播数据的重要载体，也是信息可视化领域常见的研究对象。许多此类视频包含音乐，但音乐如何影响人们对数据视频的感知体验在很大程度上仍未得到探索。我们开展了一项预先注册的研究，从三个维度考察音乐的影响：说服力、参与度和情感表达。我们向在线参与者展示了同一数据视频的三种版本：（1）无任何音乐，（2）带有通用的默认音乐，（3）配有专业作曲家设计的定制音乐。研究发现，默认音乐有助于增强数据视频的说服力。然而，定制音乐的效果较为复杂，且我们未发现音乐能提升参与度。此外，与预期相反，参与者在无音乐条件下报告了更强烈的情感体验。本研究为音乐与数据可视化的交叉领域提供了新的见解，并为指导设计者创作具有影响力的数据驱动叙事迈出了第一步。