Time-frequency And Multiple-resolution Representations In Auditory Modeling

Abstract

The human auditory system is known to utilize different temporal and frequency re,solutions in different contexts and analysis phases. In this paper we discuss some aspects of using time-frequency representations and multiple resolutions in auditory modeling from an information and signal theoretic point of view. The first question is how to allocate resolution optimally between frequency and time. For this purpose a new method called the FAM tranSform is described. The other question is how to utilize multiple parallel and redundant resolutions to avoid some problems that are faced when using single resolution approaches.