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Journal Article

Maximum Likelihood Estimation of Loudspeaker Locations from Room Impulse Responses

Authors: Tervo, Sakari; Lokki, Tapio; Savioja, Lauri

Journal of the Audio Engineering Society · Volume 59 · Issue 11 · pp. 845–857 · November 2011

Abstract

In many applications it would be useful to estimate the location of a loudspeaker in a listening room or concert hall directly from the room impulse response. A novel method, based on combining the information from time-difference of arrival (TDOA) and time-of arrival (TOA), is proposed. The TOA-based method has a large variance in direction estimates, and the TDOA-based method has a large variance in distance estimation. Experiments show that the combined method is more accurate than either method alone by as much as a factor of two. Only a single parameter needs to be optimized.

Details

Publication
Journal of the Audio Engineering Society
Volume
59
Issue
11
Pages
845–857
Publication date
November 6, 2011
Affiliation
Aalto University School of Science, Department of Media Technology, Aalto, Finland (See document for exact affiliation information.)
Type
Journal Article