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This paper describes a robot referee for "rock- paper-scissors (RPS)" sound games; the robot decides the winner from a combination of rock, paper and scissors uttered by two or three people simultaneously without using any visual information. In this referee task, the robot has to cope with speech with low signal-to-noise ratio (SNR) due to a mixture of speeches, robot motor noises, and...
This paper describes a method to adaptively control a step-size parameter which is used for updating a separation matrix to extract a target sound source accurately in blind source separation (BSS). The design of the step-size parameter is essential when we apply BSS to real-world applications such as robot audition systems, because the surrounding environment dynamically changes in the real world...
Sound source tracking is an important function for a robot operating in a daily environment, because the robot should recognize where a sound event such as speech, music and other environmental sounds originates from. This paper addresses sound source tracking by integrating a room and a robot microphone array. The room microphone array consists of 64 microphones attached to the walls. It provides...
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