Opens in a new tab

AES E-Library

← Back to search

Convention Paper

A Composite Physiological Model of the Inner Ear for Audio Coding

Authors: Ivanov, Alexei V.; Petrovsky, Alexander A.

AES Convention 116 · Paper 6082 · May 2004

Abstract

An alternative approach to psychoacoustical masking modelling is to model such phenomena as suppression, spreadof-excitation and IHC adaptation, which are among the underlying physiological phenomena for psychoacoustically observed masking. This paper proposes a physiologically grounded model for threshold estimation. It includes a reconfigurable non-uniform filterbank to simulate a "cochlear amplifier" and an associated suppression effect and a digital reservoir IHC model to account for their adaptive responses. It allows designing coders, which retain enough information to create an identical excitation pattern in the auditory nerve compared to that of the original signal. As our model is based on the masking physiology, its application is justified in the complex audio signals case.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6082
Publication date
May 6, 2004
Session subject
Psychoacoustics, Perception, and Listening Tests
Affiliation
Computer Engineering Department at the Belarusian State University of Informatics and Radioelectronics, Minsk, Belarus ; Real-Time Systems Department at the Bialystok Technical University, Bialystok, Poland (See document for exact affiliation information.)
Type
Convention Paper