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         author = {Kumatani, Kenichi and McDonough, John and Rauch, Barbara and Garner, Philip N. and Li, Weifeng and Dines, John},
       projects = {AMIDA},
          month = {9},
          title = {Maximum kurtosis beamforming with the generalized sidelobe canceller},
      booktitle = {Proceedings of INTERSPEECH, September 2008},
           year = {2008},
       location = {Brisbane, Australia},
       abstract = {This paper presents an adaptive beamforming application
based on the capture of far-field speech data from a real
single speaker in a real meeting room. After the position of a
speaker is estimated by a speaker tracking system, we construct
a subband-domain beamformer in generalized sidelobe canceller
(GSC) configuration. In contrast to conventional practice,
we then optimize the active weight vectors of the GSC so that kurtosis of output signals is maximized.
Our beamforming algorithms can suppress noise and reverberation without
the signal cancellation
problems encountered in conventional beamforming
algorithms. We demonstrate the effectiveness of our proposed
techniques through a series of automatic speech
recognition experiments on the Multi-Channel Wall Street Journal
Audio Visual Corpus (MC-WSJ-AV). The beamforming algorithm proposed
here achieved a 13.6\% WER, whereas the simple delay-and-sum
beamformer provided a WER of 17.8\%.},
            pdf = {https://publications.idiap.ch/attachments/papers/2008/Kumatani_INTERSPEECH_2008.pdf}