CSAIL Event Calendar
TEMPO: A Model of Speech Perception Inspired by Brain RhythmicitySpeaker: Oded Ghitza, Boston University Date: Monday, November 9 2009 Time: 4:00PM to 5:00PM Refreshments: 3:45PM Location: 32-G882 (Stata Center - 8th floor Reading Room) Host: Jim Glass, MIT CSAIL Contact: Marcia Davidson, 617-253-3049, marcia@csail.mit.edu A computational model is presented in which the process of decoding speech is temporally guided by an array of hierarchical oscillators operating in the delta (<3 Hz), theta (5–10 Hz), beta (20–40 Hz) and gamma (60–120 Hz) ranges. The model is capable of emulating intelligibility data of time-compressed speech with insertions of silence (Ghitza and Greenberg, Phonetica 2009; 66:113–126) -- data that are challenging and difficult to explain by current models of speech perception. Since the data are in terms of word errors, a comprehensive, quantitative validation would require a TEMPO-based word recognition system, not available at present. In this talk a qualitative corroboration will be presented, showing a projected performance of TEMPO in line with the human data.  
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