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The voice control is a promising user interface for the home network system (HNS). In our previous interface, a user had to be equipped with an actual microphone device, which imposed a burden on the user. This paper presents a hands-free voice interface using a microphone array network. The microphone array network enables voice quality enhancement, as well as sound source localization, by networking...
We have been developing a hands-free voice controller for a home network system (HNS) by using microphone arrays. In our current implementation, however, all human-HNS interactions are performed by voice only. Hence, the interactions tend to be mechanical, dreary and uninformative. To achieve richer interactions, we try to introduce the virtual agent technology as a feedback interface of the HNS....
In this paper, we propose a microphone array network that realizes ubiquitous sound acquisition for multiple sound sources. Several nodes with 16 microphones are connected to form a huge sound acquisition system, which carries out voice activity detection (VAD), sound source localization, and enhancement. The three operations are distributed among nodes with multi-hop data communication. Using the...
Physical positions are quite useful to realize an intuitive interface for communication among mobile terminals. We propose the placement of a microphone array on mobile terminals and the use of a network as an intuitive interface. The mobile terminals can obtain their relative positions by emitting a sound, which facilitates estimation of the directions of arrival (DOAs) among them. We produced a...
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