Convolutive Transfer Function Generalized Sidelobe Canceler

Ronen Talmon; Israel Cohen; Sharon Gannot

doi:10.1109/TASL.2009.2020891

Convolutive Transfer Function Generalized Sidelobe Canceler

Ronen Talmon, Israel Cohen, Sharon Gannot

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

In this paper, we propose a convolutive transfer function generalized sidelobe canceler (CTF-GSC), which is an adaptive beamformer designed for multichannel speech enhancement in reverberant environments. Using a complete system representation in the short-time Fourier transform (STFT) domain, we formulate a constrained minimization problem of total output noise power subject to the constraint that the signal component of the output is the desired signal, up to some prespecified filter. Then, we employ the general sidelobe canceler (GSC) structure to transform the problem into an equivalent unconstrained form by decoupling the constraint and the minimization. The CTF-GSC is obtained by applying a convolutive transfer function (CTF) approximation on the GSC scheme, which is a more accurate and a less restrictive than a multiplicative transfer function (MTF) approximation. Experimental results demonstrate that the proposed beamformer outperforms the transfer function GSC (TF-GSC) in reverberant environments and achieves both improved noise reduction and reduced speech distortion.

Original language	English
Pages (from-to)	1420-1434
Number of pages	15
Journal	IEEE Transactions on Audio, Speech and Language Processing
Volume	17
Issue number	7
DOIs	https://doi.org/10.1109/TASL.2009.2020891
State	Published - Sep 2009

Bibliographical note

Funding Information:
Manuscript received October 07, 2008; revised March 22, 2009. Current version published July 31, 2009. This work was supported by the Israel Science Foundation under Grant 1085/05. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Nakatani Tomohiro. R. Talmon and I. Cohen are with the Department of Electrical Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel (e-mail: ro-nenta2@techunix.technion.ac.il; icohen@ee.technion.ac.il). S. Gannot is with the School of Engineering, Bar-Ilan University, Ramat-Gan, 52900, Israel (e-mail: gannot@eng.biu.ac.il). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASL.2009.2020891

Keywords

Adaptive signal processing
array signal processing
beamforming
generalized sidelobe canceler (GSC)
linearly constrained minimum variance (LCMV)
microphone arrays
minimum variance distortionless response (MVDR)
noise reduction
speech enhancement

Access to Document

10.1109/TASL.2009.2020891

Cite this

@article{4adb9d8b25034a10a630ab7ba1221105,

title = "Convolutive Transfer Function Generalized Sidelobe Canceler",

abstract = "In this paper, we propose a convolutive transfer function generalized sidelobe canceler (CTF-GSC), which is an adaptive beamformer designed for multichannel speech enhancement in reverberant environments. Using a complete system representation in the short-time Fourier transform (STFT) domain, we formulate a constrained minimization problem of total output noise power subject to the constraint that the signal component of the output is the desired signal, up to some prespecified filter. Then, we employ the general sidelobe canceler (GSC) structure to transform the problem into an equivalent unconstrained form by decoupling the constraint and the minimization. The CTF-GSC is obtained by applying a convolutive transfer function (CTF) approximation on the GSC scheme, which is a more accurate and a less restrictive than a multiplicative transfer function (MTF) approximation. Experimental results demonstrate that the proposed beamformer outperforms the transfer function GSC (TF-GSC) in reverberant environments and achieves both improved noise reduction and reduced speech distortion.",

keywords = "Adaptive signal processing, array signal processing, beamforming, generalized sidelobe canceler (GSC), linearly constrained minimum variance (LCMV), microphone arrays, minimum variance distortionless response (MVDR), noise reduction, speech enhancement",

author = "Ronen Talmon and Israel Cohen and Sharon Gannot",

note = "Funding Information: Manuscript received October 07, 2008; revised March 22, 2009. Current version published July 31, 2009. This work was supported by the Israel Science Foundation under Grant 1085/05. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Nakatani Tomohiro. R. Talmon and I. Cohen are with the Department of Electrical Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel (e-mail: ro-nenta2@techunix.technion.ac.il; icohen@ee.technion.ac.il). S. Gannot is with the School of Engineering, Bar-Ilan University, Ramat-Gan, 52900, Israel (e-mail: gannot@eng.biu.ac.il). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASL.2009.2020891",

year = "2009",

month = sep,

doi = "10.1109/TASL.2009.2020891",

language = "אנגלית",

volume = "17",

pages = "1420--1434",

journal = "IEEE Transactions on Audio, Speech and Language Processing",

issn = "1558-7916",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "7",

}

TY - JOUR

T1 - Convolutive Transfer Function Generalized Sidelobe Canceler

AU - Talmon, Ronen

AU - Cohen, Israel

AU - Gannot, Sharon

N1 - Funding Information: Manuscript received October 07, 2008; revised March 22, 2009. Current version published July 31, 2009. This work was supported by the Israel Science Foundation under Grant 1085/05. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Nakatani Tomohiro. R. Talmon and I. Cohen are with the Department of Electrical Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel (e-mail: ro-nenta2@techunix.technion.ac.il; icohen@ee.technion.ac.il). S. Gannot is with the School of Engineering, Bar-Ilan University, Ramat-Gan, 52900, Israel (e-mail: gannot@eng.biu.ac.il). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASL.2009.2020891

PY - 2009/9

Y1 - 2009/9

N2 - In this paper, we propose a convolutive transfer function generalized sidelobe canceler (CTF-GSC), which is an adaptive beamformer designed for multichannel speech enhancement in reverberant environments. Using a complete system representation in the short-time Fourier transform (STFT) domain, we formulate a constrained minimization problem of total output noise power subject to the constraint that the signal component of the output is the desired signal, up to some prespecified filter. Then, we employ the general sidelobe canceler (GSC) structure to transform the problem into an equivalent unconstrained form by decoupling the constraint and the minimization. The CTF-GSC is obtained by applying a convolutive transfer function (CTF) approximation on the GSC scheme, which is a more accurate and a less restrictive than a multiplicative transfer function (MTF) approximation. Experimental results demonstrate that the proposed beamformer outperforms the transfer function GSC (TF-GSC) in reverberant environments and achieves both improved noise reduction and reduced speech distortion.

AB - In this paper, we propose a convolutive transfer function generalized sidelobe canceler (CTF-GSC), which is an adaptive beamformer designed for multichannel speech enhancement in reverberant environments. Using a complete system representation in the short-time Fourier transform (STFT) domain, we formulate a constrained minimization problem of total output noise power subject to the constraint that the signal component of the output is the desired signal, up to some prespecified filter. Then, we employ the general sidelobe canceler (GSC) structure to transform the problem into an equivalent unconstrained form by decoupling the constraint and the minimization. The CTF-GSC is obtained by applying a convolutive transfer function (CTF) approximation on the GSC scheme, which is a more accurate and a less restrictive than a multiplicative transfer function (MTF) approximation. Experimental results demonstrate that the proposed beamformer outperforms the transfer function GSC (TF-GSC) in reverberant environments and achieves both improved noise reduction and reduced speech distortion.

KW - Adaptive signal processing

KW - array signal processing

KW - beamforming

KW - generalized sidelobe canceler (GSC)

KW - linearly constrained minimum variance (LCMV)

KW - microphone arrays

KW - minimum variance distortionless response (MVDR)

KW - noise reduction

KW - speech enhancement

UR - http://www.scopus.com/inward/record.url?scp=85008053938&partnerID=8YFLogxK

U2 - 10.1109/TASL.2009.2020891

DO - 10.1109/TASL.2009.2020891

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85008053938

SN - 1558-7916

VL - 17

SP - 1420

EP - 1434

JO - IEEE Transactions on Audio, Speech and Language Processing

JF - IEEE Transactions on Audio, Speech and Language Processing

IS - 7

ER -

Convolutive Transfer Function Generalized Sidelobe Canceler

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this