Audio or video versions can have a significant effect on meaning by adding elements such as tone of voice, facial expressions, background music, and visual cues that can enhance the overall understanding and emotional impact of the content. This can provide a more immersive and engaging experience for the audience, potentially leading to a deeper connection with the material and a more nuanced interpretation. Additionally, audio or video versions can also present information in a more accessible and easily digestible format for those who prefer auditory or visual learning styles.