Generating Verbal and Nonverbal Utterances for Virtual Characters

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Abstract

We introduce an approach to multimodal generation of verbal and nonverbal contributions for virtual characters in a multiparty dialogue scenario. This approach addresses issues of turn-taking, is able to synchronize the different modalities in real-time, and supports fixed utterances as well as utterances that are assembled by a full-fledged tree-based text generation algorithm. The system is implemented in a first version as part of the second VirtualHuman demonstrator.