Title :
A pipelined synthesis of cochlea DSP lattice filters
Author :
Sellami, Louiza ; Newcomb, Robert W.
Author_Institution :
Dept. of Electr. Eng., US Naval Acad., Annapolis, MD, USA
Abstract :
A pipelined lattice realization of a digital scattering model of the cochlea is presented, based on real, lossless lattice synthesis of ARMA filters. The structure is recursively designed and each lattice is precisely implemented by a pair of complex conjugate transmission zeros via Richard´s function extractions. In addition to being suitable for VLSI realization, the structure leads to a systematic cochlea parameter estimation, owing to the scattering nature of the model
Keywords :
VLSI; autoregressive moving average processes; cascade networks; digital filters; digital signal processing chips; ear; filtering theory; lattice filters; network synthesis; parameter estimation; pipeline processing; ARMA filters; Richard´s function extractions; VLSI; cascade synthesis; cochlea DSP lattice filters; complex conjugate transmission zeros; digital scattering model; digital transfer function; lossless lattice synthesis; pipelined lattice; pipelined synthesis; systematic cochlea parameter estimation; Acoustic scattering; Digital filters; Digital signal processing; Filtering theory; Lattices; Reflection; Speech processing; Speech synthesis; Transfer functions; Very large scale integration;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.652165
