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This paper presents a sound source (talker) localization method using only a single microphone based upon maximum likelihood. In our previous work, we proposed GMM (Gaussian mixture model) separation for estimation of the sound source direction, where the observed (reverberant) speech is separated into the acoustic transfer function and the clean speech GMM, and showed its effectiveness for the single-talker...
This paper introduces an active microphone concept that achieves a good combination of active-operation and signal processing, where a new sound-source-direction estimation method using only a single microphone with a parabolic reflection board is proposed. A simple signal-power-based method using a parabolic antenna has been proposed in the radar field. But the signal-power-based method is not effective...
This paper introduces a concept of an active microphone that achieves a good combination of active-operation and signal processing, where a new sound-source-direction estimation method using only a single microphone with a parabolic reflection board is proposed. In our previous work [1], we proposed GMM (Gaussian Mixture Model) separation for estimation of the sound source direction, where the observed...
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