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Journal Article

Unmixing Acoustic Sources in Real Reverberant Environments for Close-Microphone Applications

Authors: Kokkinis, Elias K.; Mourjopoulos, John

Journal of the Audio Engineering Society · Volume 58 · Issue 11 · pp. 907–922 · November 2010

Abstract

When recording multiple musicians with close microphones in a real space, each microphone captures both the sound of the intended instrument and the undesired interference from other sources. The blind source separation (BSS) framework can be employed in order to suppress the leakage components. However typical convolutive BSS algorithms—attempting to blindly identify and invert the acoustic mixing system, which comprises several room impulse responses—do not achieve the desired result. In comparison, a Wiener filter was found to achieve superior performance in the separation of two audio sources, while being simple and computationally efficient.

Details

Publication
Journal of the Audio Engineering Society
Volume
58
Issue
11
Pages
907–922
Publication date
November 6, 2010
Affiliation
University of Patras, Audio Group, Wire Communications Laboratory, Patras, Greece (See document for exact affiliation information.)
Type
Journal Article