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Audio Object Separation Using Microphone Array Beamforming

Coleman, P, Jackson, PJB and Francombe, J (2015) Audio Object Separation Using Microphone Array Beamforming In: 138th Convention of the Audio Engineering Society, 2015-05-07 - 2015-05-10, Warsaw, Poland.

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Abstract

Audio production is moving toward an object-based approach, where content is represented as audio together with metadata that describe the sound scene. From current object definitions, it would usually be expected that the audio portion of the object is free from interfering sources. This poses a potential problem for object-based capture, if microphones cannot be placed close to a source. This paper investigates the application of microphone array beamforming to separate a mixture into distinct audio objects. Real mixtures recorded by a 48-channel microphone array in reflective rooms were separated, and the results were evaluated using perceptual models in addition to physical measures based on the beam pattern. The effect of interfering objects was reduced by applying the beamforming techniques.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
AuthorsEmailORCID
Coleman, PUNSPECIFIEDUNSPECIFIED
Jackson, PJBUNSPECIFIEDUNSPECIFIED
Francombe, JUNSPECIFIEDUNSPECIFIED
Date : 10 May 2015
Copyright Disclaimer : This paper was presented at the 138th Convention of the Audio Engineering Society, as paper number 9296. The full published version can be found at http://www.aes.org/e-lib/browse.cfm?elib=17720
Contributors :
ContributionNameEmailORCID
PublisherAudio Engineering Society, UNSPECIFIEDUNSPECIFIED
Depositing User : Symplectic Elements
Date Deposited : 08 Nov 2016 15:58
Last Modified : 08 Nov 2016 15:58
URI: http://epubs.surrey.ac.uk/id/eprint/808158

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