This study explores how inferential description relates to expert knowledge by analyzing commentators’ inferential descriptions of players’ visual perceptions and intentions during live volleyball match broadcasts. The analysis revealed that even when the commentator could not provide the viewer with detailed visual evidence of what, when, and how the player perceives their surroundings, they could still make inferences about the player’s visual perception based on their own knowledge. The inference is made to show that a particular play was created with some intention. In addition, such inferential descriptions of visual skills, which conceptually link the player’s perceptions and intentions, are often contrasted with descriptions based on ‘popular vision’. These practices clarify the commentators’ expertise. These findings advance the theory of sports expertise in media studies and science and technology studies (STS) from the perspective of expert practices.

中文翻译：

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视觉推断：排球转播过程中解说员对球员视觉感知和意图的描述分析

本研究通过分析解说员在排球比赛直播期间对球员视觉感知和意图的推理描述，探讨推理描述与专业知识的关系。分析显示，即使解说员无法向观众提供有关玩家感知周围环境的内容、时间和方式的详细视觉证据，他们仍然可以根据自己的知识对玩家的视觉感知做出推断。做出这样的推论是为了表明特定的戏剧是出于某种意图而创作的。此外，这种对视觉技能的推理性描述在概念上将玩家的感知和意图联系起来，通常与基于“大众视觉”的描述形成鲜明对比。这些做法阐明了评论员的专业知识。这些发现从专家实践的角度推进了媒体研究和科学技术研究（STS）中的体育专业理论。