Speech Enabled 3D-Browsers: Development Issues and a Software Framework Alternative

Ednaldo Brigante PizzolatoDiego Daniel DuarteMarcio Merino Fernandes

There is a growing trend for advanced 3D visualization systems to employ multimodal input interfaces. One of the most desirable of such modalities is speech recognition, as it is natural to users, and complements very well other input interfaces. However, although well understood, integrating a speech interface into a complex system can be a difficult and time consuming task. In this paper we present our approach to the problem, a software framework requiring minimum additional coding from the application developer. The framework couples voice command definitions with existing interaction code, automating the task of creating a new grammar to be used by the recognizer engine. A new listener component for the Xj3D was created, which makes transparent to the user the integration between the 3D browser and the recognizer. We believe this is a desirable feature for virtual reality system developers, and also to be used as a rapid prototyping tool when experimenting with speech technology.

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