Audio presentation is an important modality in virtual storytelling. In this paper we present our work on audio presentation in our intelligent multimodal storytelling system, CONFUCIUS, which automatically generates 3D animation speech, and non-speech audio from natural language sentences. We provide an overview of the system and describe speech and non-speech audio in virtual storytelling by using linguistic approaches. We discuss several issues in auditory display, such as its relation to verb and adjective ontology, concepts and modalities, and media allocation. Finally we conclude that introducing linguistic knowledge provides more intelligent virtual storytelling, especially in audio presentation.