Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Improved Stereo Imaging in Automobiles

Authors: Smithers, Michael J.

AES Convention 123 · Paper 7223 · October 2007

Abstract

A significant challenge in the automobile listening environment is the predominance of off-axis listening positions. This leads to audible artifacts including comb filtering and indeterminate stereo imaging; both in traditional stereo and more recent multi-channel speaker configurations. This paper discusses the problem of off-axis listening as well as methods to improve stereo imaging in a symmetric manner using all-pass FIR and IIR filters. This paper also discusses a more efficient IIR filter design that achieves similar performance to previous filter designs. Use of these filters results in stable, virtual sources in front of off-axis listeners.

Details

Published in
AES Convention 123
AES Convention
123
Paper number
7223
Publication date
October 6, 2007
Session subject
Automotive Audio and Amplifiers
Affiliation
Dolby Laboratories (See document for exact affiliation information.)
Type
Convention Paper