@inproceedings{2feffdc34665417c86c51a1d8cda54a7,
title = "Far-field criterion for spherical microphone arrays and directional sources",
abstract = "A planar wavefront assumption facilitates significant simplifications in microphone array processing algorithms because information on the distance of the source is not required. This assumption was studied and formulated for spherical microphone arrays and point sources, but has not been studied yet for directional sources, which represent realistic sources such as musical instruments. A far-field criterion for directional sources is proposed in this paper, and the accuracy of a plane-wave approximation at a spherical microphone array is shown to depend on parameters of the acoustic configuration, such as the distance between the source and the microphone array and the source directivity.",
keywords = "Loudspeaker Arrays, MIMO, Microphone Arrays, Spherical Harmonics",
author = "Hai Morgenstern and Boaz Rafaely",
year = "2014",
month = jan,
day = "1",
doi = "10.1109/HSCMA.2014.6843248",
language = "American English",
isbn = "9781479931095",
series = "2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014",
pages = "42--46",
booktitle = "2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014",
note = "2014 4th Joint Workshop on Hands-Free Speech Communication and Microphone Arrays, HSCMA 2014 ; Conference date: 12-05-2014 Through 14-05-2014",
}