Modeling the Precedence Effect for Speech

  • Odelia Schwartz
  • John G. Harris
  • Jose C. Principe


The human auditory system is capable of perceiving the direction of a sound source despite reflections off of walls, ceiling and other interfering objects. This phenomenon, the precedence effect, has been previously modeled only for synthetic click stimuli. This paper presents a biologically plausible computer simulation for speech, that combines a cross-correlation model with an onset enhancement scheme. As part of the complete model, a novel onset enhancement method is described and implemented, based on adaptive prediction. The adaptive method is promising in its ability to enhance onsets and reduce the steady state portion of the speech signal. The model can serve as a tool to understand the precedence effect for complex signals and should be advantageous to engineering applications such as preprocessors for speech recognition systems.


Speech Signal Sound Source Adaptive Filter Precedence Effect Interaural Time Difference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Odelia Schwartz
    • 1
  • John G. Harris
    • 2
  • Jose C. Principe
    • 2
  1. 1.Center for Neural ScienceNew York UniversityUSA
  2. 2.Electrical and Computer EngineeringUniversity of FloridaUSA

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