Developments and directions in speech recognition and understanding, Part 1 [DSP Education] Baker, J. ; Deng, Li ; Glass, J. ; Khudanpur, S. ; Lee, Chin-Hui ; Morgan, N. ; O'Shaughnessy, D. Abstract Publication: IEEE Signal Processing Magazine Pub Date: May 2009 DOI: 10.1109/MSP.2009.932166 Bibcode: 2009ISPM...26...75B