Extracting Features from the Short-term Time Structure of Cochlear Filtered Sound 1 Auditory Modelling and Spectral Analysis

Short-term Time Structure of Cochlear Filtered Sound Leslie S. Smith CCCN, Dept. of Computing Science and Mathematics, University of Stirling Stirling FK9 4LA, Scotland. Abstract Auditory modelling uses the architecture of the auditory system to guide early sound processing. The advantage of this approach is (i) timeresolution is better and (ii) many bandpassed channels are available and can be processed in parallel. Good time-resolution allows sophisticated across-time processing to be applied to each channel, resulting in the discovery of features in each channel. Logically each channel can be processed simultaneously. The features discovered can be correlated across channels. We present some early results for processing sound at three di erent levels of short-term time structure. 1 Auditory Modelling and Spectral Analysis to appear in:John A. Bullinaria, David W. Glasspool & George Houghton (1997). Proceedings of the Fourth Neural Computation and Psychology Workshop: Connectionist Representations. London: Springer-Verlag.