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Convention Paper

Acoustical Zooming Based on a Parametric Sound Field Representation

Authors: Schultz-Amling, Richard; Kuech, Fabian; Thiergart, Oliver; Kallinger, Markus

AES Convention 128 · Paper 8120 · May 2010

Abstract

Directional audio coding (DirAC) is a parametric approach for the analysis and reproduction of spatial

sound. The DirAC parameters, namely direction-of-arrival and diffuseness of sound can be further exploited

in modern teleconferencing systems. Based on the directional parameters, we can control a video camera to

automatically steer on the active talker. In order to provide consistency between the visual and acoustical

cues, the virtual recording position should match the visual movement. In this paper, we present an approach

for an acoustical zoom, which provides audio rendering that follows the movement of the visual scene. The

algorithm does not rely on a priori information regarding the sound reproduction system as it operates

directly in the DirAC parameter domain.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8120
Publication date
May 6, 2010
Session subject
Multichannel and Spatial Audio
Affiliation
Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany (See document for exact affiliation information.)
Type
Convention Paper