Noise Suppression Using Beamformer and Transfer-Function-Gain Nonnegative Matrix Factorization with Distributed Stereo Microphones

In this paper, we propose a novel approach to noise suppression using multiple distributed recording devices with stereo microphones. the proposed method, based on phase information is applied synchronous signals captured by each device and then output are utilized for transfer-function-gain nonnegative matrix factorization (NMF) as extra input signals. We intended estimate target signal more accurately NMF. Experiments impulse responses measured in meeting room have shown that method outperformed conventional methods NMF terms of signal-to-distortion ratio (SDR) signal-to-interference (SIR).