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Convention Paper

Converting Two-Channel Stereo Signals to B-Format for Directional Audio Coding Reproduction

Authors: Laitinen, Mikko-Ville

AES Convention 137 · Paper 9127 · October 2014

Abstract

A method for transforming two-channel stereo audio signals to B-format is proposed, which provides unaltered spatial qualities when the B-format signals are reproduced with directional audio coding (DirAC). The proposed method simulates anechoic B-format recordings of the stereo signals with two different virtual loudspeaker configurations, and the simulated B-format signals are combined according to time-frequency analysis of the stereo signals. The analysis is based on estimating the diffuseness of the generated virtual sound field and the coherence between the loudspeaker channels.

Details

Published in
AES Convention 137
AES Convention
137
Paper number
9127
Publication date
October 6, 2014
Session subject
Spatial Audio
Affiliation
Aalto University, Espoo, Finland (See document for exact affiliation information.)
Type
Convention Paper