Array Signal Processing: Concepts and Techniques
Array Signal Processing: Concepts and Techniques
Design of a multimodal input interface for a dialogue system
PROPOR'06 Proceedings of the 7th international conference on Computational Processing of the Portuguese Language
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In this paper we present a Spoken Dialog System (SDS) with a Microphone Array (MA). Our goal is to create a hands-free home automation system with a speech interface to control home devices. The MA interface enables to create ubiquitous speech acquisition for the SDS. The implemented system allows any user --- in any position in a room --- to establish a dialog with a virtual butler that is able to control a wide range of home appliances (room lights, air-conditioner, windows shades and hi-fi features). This virtual butler has a 3D animated face that is, while the dialog is engaged, able to steer to the user's position and respond to his/hers commands with synthesized speech. The presented results show that the MA, as distant talk interface, performs quite well and is a step towards a more realistic human-machine interaction.