Spherical microphone array acoustic rake receivers

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Title: Spherical microphone array acoustic rake receivers
Author(s): Javed, HA
Moore, AH
Naylor, PA
Item Type: Conference Paper
Abstract: Several signal independent acoustic rake receivers are proposed for speech dereverberation using spherical microphone arrays. The proposed rake designs take advantage of multipaths, by separately capturing and combining early reflections with the direct path. We investigate several approaches in combining reflections with the direct path source signal, including the development of beam patterns that point nulls at all preceding reflections. The proposed designs are tested in experimental simulations and their dereverberation performances evaluated using objective measures. For the tested configuration, the proposed designs achieve higher levels of dereverberation compared to conventional signal independent beamforming systems; achieving up to 3.6 dB improvement in the direct-to-reverberant ratio over the plane-wave decomposition beamformer.
Publication Date: 25-Mar-2016
Date of Acceptance: 21-Dec-2015
URI: http://hdl.handle.net/10044/1/38887
DOI: https://dx.doi.org/10.1109/ICASSP.2016.7471647
ISSN: 0736-7791
Publisher: IEEE
Start Page: 111
End Page: 115
Journal / Book Title: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: 609465
Conference Name: ICASSP, 2016 IEEE International Conference on Acoustics, Speech and Signal Processing
Copyright Statement: © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publication Status: Published
Start Date: 2016-03-20
Finish Date: 2016-03-25
Conference Place: Shanghai, China
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering



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