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While a robot is moving, the joints inevitably generate noise due to its motors, i.e. ego-motion noise. This problem is very crucial, especially in humanoid robots, because it tends to have a lot of joints and the motors are located closer to the microphones than the sound sources. In this work, we investigate methods for the prediction and suppression of the ego-motion noise. In the first part, we...
This paper addresses sound source separation and speech recognition for moving sound sources. Real-world applications such as robots should cope with both moving and stationary sound sources. However, most studies assume only stationary sound sources. We introduce two key techniques to cope with moving sources, that is, Adaptive Step-size control (AS) and Optima Controlled Recursive Average (OCRA)...
Robot capability of listening to several things at once by its own ears, that is, robot audition, is important in improving human-robot interaction. The critical issue in robot audition is real-time processing in noisy environments with high flexibility to support various kinds of robots and hardware configurations. This paper presents open-source robot audition software, called ldquoHARKrdquo, which...
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