Chair of
Multimedia Communications and Signal Processing
Prof. Dr.-Ing. André Kaup

Please note that we have moved on August 8, 2016 to Tennenlohe. The mailing address and phone numbers remain unchanged.

Prof. Dr.-Ing. Walter Kellermann


Function:
Faculty
Room:
01.105
Address:
Friedrich-Alexander-Universität Erlangen-Nürnberg
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Wetterkreuz 15
91058 Erlangen
Mailing Address:
Cauerstraße 7
91058 Erlangen
Phone:
+49 9131 85 27669
Fax:
+49 9131 85 28849
E-Mail:
(only as a picture)

Field of activity

Current Projects

Research topics

Teaching Winter Term 2017-2018

Supervised Theses

Publications

Journal Articles:

2017-7
CRIS
H. Barfuss, C. Hümmer, A. Schwarz, W. Kellermann
   [link]   [doi]   [bib]

Robust coherence-based spectral enhancement for speech recognition in adverse real-world environments
Elsevier Computer Speech and Language Special Issue: Multi-Microphone Automatic Speech Recognition (CSL) Num. 46, Pages: 388 - 400, 2017
2016-72
CRIS
S. Markovich-Golan, S. Gannot, W. Kellermann
   [doi]   [bib]

Combined LCMV-TRINICON beamforming for separating multiple speech sources in noisy and reverberant environments
IEEE/ACM Transactions on Audio, Speech, and Language Processing Online Publication, Dec. 2016
2016-71
CRIS
M. Schneider, W. Kellermann
   [link]   [doi]   [bib]

Multichannel Acoustic Echo Cancellation in the Wave Domain With Increased Robustness to Nonuniqueness
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 24, Online Publication, Num. 3, Pages: 518 - 529 , Mar. 2016
2016-69
CRIS
B. Dong, J. Antoni, Antonio Pereira, W. Kellermann
   [link]   [doi]   [bib]

Blind separation of incoherent and spatially disjoint sound sources
Journal of Sound and Vibration Vol. 383, Online Publication, Pages: 414–445, Aug. 2016
2016-55
CRIS
C. Hofmann, C. Hümmer, M. Guenther, W. Kellermann
   [link]   [doi]   [bib]

Significance-Aware Filtering for Nonlinear Acoustic Echo Cancellation
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2016, Num. 1, Pages: 113, 2016
2016-32
CRIS
M. Rupp, W. Kellermann, A. Zoubir, G. Schmidt
   [link]   [doi]   [bib]

Advances in adaptive filtering theory and applications to acoustic and speech signal processing (Editorial)
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2016:63, Online Publication, May 2016
2016-12
CRIS
M. Schneider, W. Kellermann
   [doi]   [bib]

The generalized frequency-domain adaptive filtering algorithm as an approximation of the block recursive least-squares algorithm
EURASIP Journal on Advances in Signal Processing (JASP) Online Publication, Num. 2016:6, Pages: 1--15, Jan. 2016
2016-7
CRIS
K. Kinoshita, M. Delcroix, S. Gannot, E. Habets, R. Haeb-Umbach, W. Kellermann, V. Leutnant, R. Maas, T. Nakatani, B. Raj, A. Sehr, T. Yoshioka
   [doi]   [bib]

A summary of the REVERB challenge: state-of-the-art and remaining challenges in reverberant speech processing research
EURASIP Journal on Advances in Signal Processing (JASP) Online Publication, Num. 2016:7, Pages: 1--19, Jan. 2016
2016-1
CRIS
C. Zheng, C. Hofmann, X. Li, W. Kellermann
   [link]   [doi]   [bib]

Analysis of Additional Stable Gain by Frequency Shifting for Acoustic Feedback Suppression using Statistical Room Acoustics
IEEE Signal Processing Letters (IEEE SPL) Vol. 23, Num. 1, Pages: 159--163, Jan. 2016
2015-44
CRIS
R. Maas, C. Hümmer, A. Sehr, W. Kellermann
   [link]   [doi]   [bib]

A Bayesian view on acoustic model-based techniques for robust speech recognition
EURASIP Journal on Advances in Signal Processing (JASP) Online Publication, Num. 2015:103, Pages: 1--16, Dec. 2015
2015-43
CRIS
C. Hümmer, R. Maas, C. Hofmann, W. Kellermann
   [doi]   [bib]

A Bayesian network approach to linear and nonlinear acoustic echo cancellation
EURASIP Journal on Advances in Signal Processing (JASP) Online Publication, Num. 2015:98, Pages: 1--11, Nov. 2015
2015-35
CRIS
Sam Nees, A. Schwarz, W. Kellermann
   [link]   [doi]   [bib]

A model for the temporal evolution of the spatial coherence in decaying reverberant sound fields
Journal of the Acoustical Society of America (JASA) Vol. 138, Online Publication, Num. 3, Pages: EL248--EL253, Sep. 2015
2015-32
CRIS
C. Hümmer, R. Maas, W. Kellermann
   [bib]

The NLMS algorithm with time-variant optimum stepsize derived from a Bayesian network perspective
IEEE Signal Processing Letters (IEEE SPL) Vol. 22, Num. 11, Pages: 1874--1878 , Jun. 2015
2015-17
CRIS
A. Schwarz, W. Kellermann
   [link]   [doi]   [bib]

Coherent-to-Diffuse Power Ratio Estimation for Dereverberation
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 23, Online Publication, Num. 6, Pages: 1006--1018, Apr. 2015
2015-16
CRIS
S. Doclo, W. Kellermann, S. Makino, S. Nordholm
   [doi]   [bib]

Multichannel Signal Enhancement Algorithms for Assisted Listening Devices
IEEE Signal Processing Magazine Vol. 32, Num. 2, Pages: 18-30, Mar. 2015
2015-15
CRIS
S. Nordholm, W. Kellermann, S. Doclo, V. Välimäki, S. Makino, J. Hershey
   [doi]   [bib]

Signal Processing Techniques for Assisted Listening (Editorial)
IEEE Signal Processing Magazine Vol. 32, Num. 2, Pages: 16-17, Mar. 2015
2014-39
CRIS
K. Reindl, S. Meier, H. Barfuss, W. Kellermann
   [link]   [doi]   [bib]

Minimum Mutual Information-Based Linearly Constrained Broadband Signal Extraction
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 22, Num. 6, Pages: 1096-1108, Jun. 2014
2014-19
CRIS
Y. Zheng, K. Reindl, W. Kellermann
   [link]   [doi]   [bib]

Analysis of dual-channel ICA-based blocking matrix for improved noise estimation
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2014, Online Publication, Num. 2014 :26, Pages: 1--24, Mar. 2014
2014-4
CRIS
D. Markovic, K. Kowalczyk, F. Antonacci, C. Hofmann, A. Sarti, W. Kellermann
   [link]   [doi]   [bib]

Estimation of Acoustic Reflection Coefficients Through Pseudospectrum Matching
IEEE/ACM Trans. on Audio, Speech, and Language Processing Vol. 22, Num. 1, Pages: 125--137, Jan. 2014
2013-79
CRIS
E. Mabande, K. Kowalczyk, H. Sun, W. Kellermann
   [link]   [doi]   [bib]

Room geometry inference based on spherical microphone array eigenbeam processing
Journal of the Acoustical Society of America (JASA) Vol. 134, Num. 4, Pages: 2773--2789, Oct. 2013
2013-60
CRIS
L.A. Azpicueta-Ruiz, M. Zeller, A.R. Figueiras-Vidal, W. Kellermann, J. Arenas-Garcia
   [link]   [doi]   [bib]

Enhanced adaptive volterra filtering by automatic attenuation of memory regions and its application to acoustic echo cancellation
IEEE Transactions on Signal Processing (IEEE TSP) Vol. 61, Online Publication, Num. 11, Pages: 2745--2750, 2013
2013-59
CRIS
K. Kowalczyk, E.A.P. Habets, W. Kellermann, P.A. Naylor
   [link]   [doi]   [bib]

Blind system identification using sparse learning for TDOA estimation of room reflections
IEEE Signal Processing Letters (IEEE SPL) Vol. 20, Online Publication, Num. 7, Pages: 653--656, 2013
2013-8
CRIS
H. Sundar, T.V. Sreenivas, W. Kellermann
   [doi]   [bib]

Identification of active sources in single-channel convolutive mixtures using known source models
IEEE Signal Processing Letters (IEEE SPL) Vol. 20, Online Publication, Num. 2, Pages: 153-156, 2013
2012-62
CRIS
K. Reindl, Y. Zheng, A. Schwarz, S. Meier, R. Maas, A. Sehr, W. Kellermann
   [doi]   [bib]

A Stereophonic Acoustic Signal Extraction Scheme for Noisy and Reverberant Environments
Computer Speech and Language (CSL) Vol. 27, Num. 3, Pages: 726--745, May 2012
2012-37
CRIS
T. Yoshioka, A. Sehr, M. Delcroix, K. Kinoshita, R. Maas, T. Nakatani, W. Kellermann
   [bib]

Making Machines Understand Us in Reverberant Rooms: Robustness against Reverberation for Automatic Speech Recognition
IEEE Signal Processing Magazine Vol. 29, Num. 6, Pages: 114--126, Nov. 2012
2012-20
CRIS
H. Sun, W. Kellermann, E. Mabande, K. Kowalczyk
   [pdf]   [link]   [doi]   [bib]

Localization of distinct reflections in rooms using spherical microphone array eigenbeam processing
J. Acoust. Soc. Am. (JASA) Vol. 131, Num. 4, Pages: 2828--2840, Apr. 2012
2011-7
CRIS
M. Zeller, Azpicueta-Ruiz, Luis A., Arenas-Garcia, Jeronimo, W. Kellermann
   [doi]   [bib]

Adaptive Volterra Filters with Evolutionary Quadratic Kernels using a Combination Scheme for Memory Control
IEEE Transactions on Signal Processing (IEEE TSP) Vol. 59, Num. 4, Pages: 1449--1464, Apr. 2011
2011-3
CRIS
A. Lombard, Y. Zheng, H. Buchner, W. Kellermann
   [link]   [doi]   [bib]

TDOA Estimation for Multiple Sound Sources in Noisy and Reverberant Environments Using Broadband Independent Component Analysis
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 19, Num. 6, Pages: 1490--1503, Aug. 2011
2011-2
CRIS
L.A. Azpicueta Ruiz, M. Zeller, A. Figueiras-Vidal, J. Arenas-Garcia, W. Kellermann
   [doi]   [bib]

Adaptive Combination of Volterra Kernels and its Application to Nonlinear Acoustic Echo Cancellation
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 19, Num. 1, Pages: 97--110, Jan. 2011
2010-89
CRIS
Tomohiro Nakatani, W. Kellermann, Patrick Naylor, Masato Miyoshi, Biing Hwang (Fred) Juang
   [link]   [doi]   [bib]

Introduction to the special issue on processing reverberant speech: Methodologies and applications
IEEE Transactions on Audio Speech and Language Processing Vol. 18, Num. 7, Pages: 1673-1675, Sep. 2010
2010-41
CRIS
A. Brutti, L. Cristoforetti, W. Kellermann, L. Marquardt
   [link]   [doi]   [bib]

WOZ acoustic data collection for interactive TV
Language Resources and Evaluation Vol. 44, Num. 3, Pages: 205--219, Sep. 2010
2010-19
CRIS
A. Sehr, R. Maas, W. Kellermann
   [doi]   [bib]

Reverberation Model-Based Decoding in the Logmelspec Domain for Robust Distant-Talking Speech Recognition
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 18, Num. 7, Pages: 1676-1691, Sep. 2010
2010-10
CRIS
M. Zeller, W. Kellermann
   [doi]   [bib]

Fast and Robust Adaptation of DFT-Domain Volterra Filters in Diagonal Coordinates Using Iterated Coefficient Updates
IEEE Transactions on Signal Processing (IEEE TSP) Vol. 58, Num. 3, Pages: 1589 - 1604, Mar. 2010
2009-68
CRIS
H. Göckler, Henning Puder, Hugo Fastl, Sven Erik Nordholm, Torsten Dau, W. Kellermann
   [link]   [doi]   [bib]

Eurasip Journal on Advances in Signal Processing: Digital signal processing for hearing instruments
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2009, Nov. 2009
2009-10
CRIS
A. Lombard, K. Reindl, W. Kellermann
   [doi]   [bib]

Combination of Adaptive Feedback Cancellation and Binaural Adaptive Filtering in Hearing Aids
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2009, Pages: 1-15, 2009
2007-49
CRIS
S. Winter, W. Kellermann, H. Sawada, S. Makino
   [bib]

MAP-based underdetermined blind source separation of convolutive mixtures by hierarchical clustering and L1-norm minimization,
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2007, Pages: 1-12, Jan. 2007
2007-13
CRIS
W. Herbordt, H. Buchner, S. Nakamura, W. Kellermann
   [bib]

Multichannel bin-wise robust frequency-domain adaptive filtering and its application to adaptive beamforming
IEEE Trans on Audio, Speech, and Language Processing Vol. 15, Num. 4, Pages: 1340-1351, May 2007
2006-46
CRIS
H. Teutsch, W. Kellermann
   [bib]

Acoustic source detection and localization based on wavefield decomposition using circular microphone arrays
J. Acoust. Soc. Am. Num. 120 (5), Pages: 2724-2736, Nov. 2006
2006-40
CRIS
R. Aichner, H. Buchner, W. Kellermann
   [bib]

Exploiting Narrowband Efficiency for Broadband Convolutive Blind Source Separation
EURASIP Journal on Advances in Signal Processing (JASP) Vol. 2007, Pages: 1-9, Sep. 2006
2006-22
CRIS
F. Küch, W. Kellermann
   [bib]

Orthogonalized power filters for nonlinear acoustic echo cancellation
Signal Processing Vol. 86, Pages: 1168-1181, Jun. 2006
2006-19
CRIS
R. Aichner, H. Buchner, F. Yan, W. Kellermann
   [bib]

A Real-Time Blind Source Separation Scheme and its Application to Reverberant and Noisy Acoustic Environments
Signal Processing Vol. 86, Pages: 1260-1277, Jun. 2006
2006-14
CRIS
S. Srinivasan, R. Aichner, B. Kleijn, W. Kellermann
   [bib]

Multichannel Parametric Speech Enhancement
IEEE Signal Processing Letters (IEEE SPL) Vol. 13, Num. 5, Pages: 304-307, May 2006
2006-10
CRIS
H. Buchner, J. Benesty, T. Gaensler, W. Kellermann
   [bib]

Robust Extended Multidelay Filter and Double-talk Detector for Acoustic Echo Cancellation
IEEE Transactions on Audio, Speech and Language Processing (IEEE TASLP) Vol. 14, Num. 5, Pages: 1633-1644, Sep. 2006
2005-11
CRIS
F. Küch, W. Kellermann
   [bib]

Partitioned Block Frequency-Domain Adaptive Second-Order Volterra Filter
IEEE Transactions on Signal Processing (IEEE TSP) Vol. 53, Num. 2, Pages: 564-575, 2005
2005-2
CRIS
H. Buchner, R. Aichner, W. Kellermann
   [bib]

A generalization of blind source separation algorithms for convolutive mixtures based on second order statistics
IEEE Trans on Speech and Audio Processing Vol. 13, Num. 1, Pages: 120-134, Jan. 2005
2005-1
CRIS
H. Buchner, J. Benesty, W. Kellermann
   [bib]

Generalized Multichannel Frequency-Domain Adaptive Filtering: Efficient Realization and Application to Hands-Free Speech Communication
Signal Processing Vol. 85, Num. 3, Pages: 549-570, Mar. 2005
2003-10
CRIS
W. Herbordt, H. Buchner, W. Kellermann
   [link]   [bib]

An acoustic human-machine front-end for multimedia applications
EURASIP Journal on Applied Signal Processing Vol. 2003, Num. 1, Pages: 1-11, Jan. 2003
2002-6
CRIS
W. Herbordt, W. Kellermann
   [bib]

Frequency-domain integration of acoustic echo cancellation and a generalized sidelobe canceller with improved robustness
European Trans. on Telecommunications (ETT) Vol. 13, Num. 2, Pages: 123-132, Mar. 2002
2000-22
CRIS
A. Stenger, W. Kellermann
   [bib]

Adaptation of a Memoryless Preprocessor for Nonlinear Acoustic Echo Cancelling
Signal Processing Vol. 80, Pages: 1747-1760, Elsevier, Sep. 2000

Further Information