Mixed-signal VLSI microsystem for acoustic source separation

Shuo Li, Yingkan Lin, Milutin Stanacevic
2013 2013 IEEE 56th International Midwest Symposium on Circuits and Systems (MWSCAS)  
We present an architecture of a microsystem designed for the task of blind source separation of acoustic sources that impinge on the miniature microphone array. The proposed architecture implements the source separation algorithm in a unique framework that combines wavefront sensing, subband signal processing and independent component analysis. The spatial gradients of the acoustic wavefront are computed in the continuous-time domain and decomposed in the 16 subbands. In each band, we perform
more » ... atic independent component analysis. We demonstrate that with the proposed system architecture 13 dB separation performance is achieved in moderate reverberant environment.
doi:10.1109/mwscas.2013.6674863 dblp:conf/mwscas/LiLS13 fatcat:pkn3nymjrrgvlabtfkrmttgj5m