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Convention Paper

Investigating Spatial Audio Coding Cues for Meeting Audio Segmentation

Authors: Burnett, Ian; Cheng, Eva; Ritz, Christian

AES Convention 120 · Paper 6703 · May 2006

Abstract

As multiparty meetings involve participants that are generally stationary when actively speaking, participant location information can be used to segment the recorded meeting audio into speaker ‘turns.’ In this paper, speaker location information derived from ‘spatial cues’ generated by spatial audio coding techniques is investigated. The validity of using spatial cues for meeting audio segmentation is explored through investigating multiple microphone meeting audio recording techniques and extracting and comparing spatial cues used by different spatial audio coders. Experimental results show the statistical relationship between speaker location and interchannel level and phase-based spatial cues strongly depends on the microphone pattern. Results also indicate that interchannel correlation-based spatial cues represent location information that is ambiguous for meeting audio segmentation.

Details

Published in
AES Convention 120
AES Convention
120
Paper number
6703
Publication date
May 6, 2006
Session subject
Spatial Perception and Processing
Affiliation
University of Wollongong (See document for exact affiliation information.)
Type
Convention Paper