What typically characterizes an audiocast or audio conference?

An audiocast or audio conference is primarily characterized by its reliance on audio communication, typically conducted over a telephone or other audio platform. This format allows participants to join a conference by dialing in from their phones or connecting via computer audio. This method is particularly useful for situations where visual elements are not the focus, enabling a straightforward exchange of information through spoken dialogue.

The other choices represent different formats that do not align with the core characteristics of an audiocast. For instance, integrating video and interactive features relates more to webcasts or video conferences, while an online chat forum emphasizes text-based interactions rather than audio. A live performance presented online is distinctly different from the audio-only focus of an audiocast, which is designed specifically for auditory engagement without a visual component.