Speak4IT: Multimodal interaction in the wild

Speak4it^SM is a consumer-oriented mobile search application that leverages multimodal input and output to allow users to search for and act on local business information. In addition to specifying queries by voice (e.g., "bike repair shops near the Golden Gate Bridge") users can combine speech and gesture. For example, "gas stations" + <;route drawn on display>; will return the gas stations along the specified route traced on the display. We provide interactive demonstrations of Speak4it on both the iPhone and iPad platforms and explain the underlying multimodal architecture and challenges of supporting true multimodal interaction in a deployed mobile service.