An Efficient Implementation of the Auditory Filter Bank

Abstract

This report describes an implementation of a cochlear model proposed by Roy Patterson Patterson1992. Like a previous report Slaney1988, this document is an electronic notebook written using a software package called Mathematica Wolfram 1988. This report describes the filter bank and its implementation. The filter bank is designed as a set of parallel bandpass filters, each tuned to a different frequency. This report extends previous work by deriving an even more efficient implementation of the Gammatone filter bank, and by showing the MATLAB code to design and implement an ERB filter bank based on Gammatone filters.