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Journal Article

Spatial Sound Reproduction with Directional Audio Coding

Authors: Pulkki, Ville

Journal of the Audio Engineering Society · Volume 55 · Issue 6 · pp. 503–516 · June 2007

Abstract

[Engineering Report] Directional audio coding (DirAC) is a method for spatial sound representation, applicable for different sound reproduction systems. In the analysis part the diffuseness and direction of arrival of sound are estimated in a single location depending on time and frequency. In the synthesis part microphone signals are first divided into nondiffuse and diffuse parts, and are then reproduced using different strategies. DirAC is developed from an existing technology for impulse response reproduction, spatial impulse response rendering (SIRR), and implementations of DirAC for different applications are described.

Details

Publication
Journal of the Audio Engineering Society
Volume
55
Issue
6
Pages
503–516
Publication date
June 6, 2007
Affiliation
Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, Finland (See document for exact affiliation information.)
Type
Journal Article