What type of content should always have captions?

Captions are essential for videos, particularly those that involve spoken dialogue, as they provide a text representation of the audio content. This inclusivity is critical for individuals who are deaf or hard of hearing, allowing them to access the same information as those who can hear the audio. Additionally, captions can benefit people in noisy environments or those who may prefer to engage with the content in a visual format.

In the context of video accessibility, captions serve not only to convey dialogue but also to provide context for non-verbal sounds or music cues, enhancing the overall understanding of the content. This makes captions an integral part of ensuring that video content is accessible to a diverse audience.

In contrast, text documents, photographs without people, and infographics or charts do not inherently require captions in the same way that videos do. While these types of content may benefit from text descriptions or alternative text to convey their meaning, they do not have spoken dialogue that necessitates captioning. Thus, the focus on videos highlights the specific need for captions to accommodate auditory information that is critical for comprehension.