What technique can enhance viewer engagement when a video ad is not capturing attention effectively?

Incorporating audio in a video ad can significantly enhance viewer engagement, especially when the initial version is not effectively capturing attention. Audio adds an emotional layer to the content; it can command attention and convey messages that visuals alone may not fully express. Music, sound effects, and voiceovers can draw viewers in, creating a more immersive experience that encourages them to watch longer.

In contrast, the length of the advertisement—suggested as an option—may not necessarily keep viewers engaged; often, shorter, more concise ads work better in retaining attention. Adding subtitles can be beneficial for accessibility and comprehension, particularly for viewers who may be watching without sound, but it does not enhance engagement in the same way that impactful audio can. Similarly, while incorporating more visuals could potentially make the ad more dynamic, it does not directly address audio's capability to create a deeper emotional connection and enhance the storytelling aspect of the message.