A hybrid descent method for optimal sigmoid filter design
A hybrid descent method for optimal sigmoid filter design
In this letter, a hybrid descent method is used to determine a set of filter parameters for a sigmoid filter which attempts to work under various SNR conditions. It overcomes the limitations of the current sigmoid filters that performs effectively only at a single SNR. Results show that significant improvement in terms of better speech qualities can be achieved by the proposed sigmoid filter when working under various SNR conditions.
hybrid optimization method, noise suppression, sigmoid function, speech enhancement, various SNR condition
478-482
Chan, Kit Yan
67a8ec8b-9059-48f1-924e-b9b98e1e7437
Nordholm, Sven
afe8b3b2-591c-4564-b5d0-ac5a82a73b5c
Low, Siow Yong
8fd903a4-b0b0-4c1c-9cc7-c2fe87109376
Yong, Pei Chee
f91f0a56-8483-4363-a4d3-feebdf576754
Yiu, Cedric Ka Fai
f61db65d-2214-48ad-af2d-65a8241a2ce5
April 2014
Chan, Kit Yan
67a8ec8b-9059-48f1-924e-b9b98e1e7437
Nordholm, Sven
afe8b3b2-591c-4564-b5d0-ac5a82a73b5c
Low, Siow Yong
8fd903a4-b0b0-4c1c-9cc7-c2fe87109376
Yong, Pei Chee
f91f0a56-8483-4363-a4d3-feebdf576754
Yiu, Cedric Ka Fai
f61db65d-2214-48ad-af2d-65a8241a2ce5
Chan, Kit Yan, Nordholm, Sven, Low, Siow Yong, Yong, Pei Chee and Yiu, Cedric Ka Fai
(2014)
A hybrid descent method for optimal sigmoid filter design.
IEEE Signal Processing Letters, 21 (4), .
(doi:10.1109/LSP.2014.2303498).
Abstract
In this letter, a hybrid descent method is used to determine a set of filter parameters for a sigmoid filter which attempts to work under various SNR conditions. It overcomes the limitations of the current sigmoid filters that performs effectively only at a single SNR. Results show that significant improvement in terms of better speech qualities can be achieved by the proposed sigmoid filter when working under various SNR conditions.
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More information
Accepted/In Press date: 27 January 2014
e-pub ahead of print date: 29 January 2014
Published date: April 2014
Keywords:
hybrid optimization method, noise suppression, sigmoid function, speech enhancement, various SNR condition
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 368035
URI: http://eprints.soton.ac.uk/id/eprint/368035
PURE UUID: 9d972de8-3872-4128-bd00-8954f64d780e
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Date deposited: 28 Aug 2014 14:54
Last modified: 14 Mar 2024 17:40
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Contributors
Author:
Kit Yan Chan
Author:
Sven Nordholm
Author:
Siow Yong Low
Author:
Pei Chee Yong
Author:
Cedric Ka Fai Yiu
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