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A Wiener filter design method for distributed asynchronous microphones is proposed. The major approach to speech enhancement with a distributed microphone array has been to form directivity after adjusting the sampling rate between asynchronous microphones. However, since the synchronization accuracy varies with the source signal, noise reduction performance is often degraded. To achieve speech enhancement...
We investigated the basic principle of how spatial signals should be captured with a microphone array to estimate each source signal and its practical implementation. Most conventional studies on array signal processing have been focused on the design of beamforming and Wiener filters. To achieve further effective noise reduction, designing an optimum array structure to segregate a target from other...
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