Extracting Features from the Short-term Time Structure of Cochlear Filtered Sound

Auditory modelling uses the architecture of the auditory system to guide early sound processing. The advantage of this approach is (i) time resolution 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 different levels of short-term time structure