Inhalt des Dokuments

[1]- © Copyright??
Research Field:
Multichannel adaptive signal processing
Research
Topics:
• Multichannel acoustic echo
cancellation
• Wave-Domain Adaptive Filtering
Biography
Karim Helwani studied Computer
and Communication Technology at the University of Saarland and carried
out his diploma’s degree (Diplom Ingenieur) in 2007 on (Inverse
Scattering Algorithms for Coupled High Frequency Transmission Lines),
from summer 2007 to 2008 he was research associate at the Audio
Communication Group of the TU Berlin and worked additionally as
embedded systems engineer at PikeTec GmbH in Berlin.In Summer 2008 he
was employed at the institute of Microelectronic Systems at Leibniz
University Hannover, where he held classes in System Architecture for
Adaptive Music Classification. He joined Deutsche Telekom Laboratories
in November 2008.
Address
Quality and Usability Lab
Deutsche Telekom Laboratories
TU
Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany
Tel: +49 30 8353 58224
Publications
Sortieren nach:
Autor [2]
Jahr [3]
Journal [4]
Helwani, K. and Buchner, H. (2013). ON THE
EIGENSPACE ESTIMATION FOR SUPERVISED MULTICHANNEL SYSTEM
IDENTIFICATION [5]. to appear in the Proc. IEEE Intl. Conf. on
Acoustics, Speech and Signal Processing (ICASSP), Vancouver,
Canada.
Helwani, K., Buchner, H., Benesty, J. and
Chen, J. (2013). Multichannel Acoustic Echo Suppression [6].
Proc. IEEE Intl. Conf. on Acoustics, Speech and Signal Processing
(ICASSP), Vancouver, Canada.. IEEE, 600–604.
Huang, H., Benesty, J., Chen, J., Helwani, K.
and Buchner, H. (2013). A STUDY OF THE MVDR FILTER FOR ACOUSTIC ECHO
SUPPRESSION [7]. to appear in the Proc. IEEE Intl. Conf. on
Acoustics, Speech and Signal Processing (ICASSP), Vancouver,
Canada
Helwani, K., Buchner, H., Benesty, J. and
Chen, J. (2013). A Single-Channel MVDR Filter for Acoustic Echo
Suppression [8]. Signal Processing Letters, IEEE. IEEE,
351–354.
Link zur Originalpublikation [9]
Helwani, K., Spors, S. and Buchner, H. (2012).
How to Design a Delay-and-Sum Beamformer for Rigid Rotationally
Symmetric Arrays? [10]. 46th Annual Asilomar Conference on
Signals, Systems, and Computers. IEEE, 1–4.
Helwani, K., Buchner, H. and Spors, S. (2012).
Multichannel Adaptive Filtering with Sparseness Constraints [11].
International Workshop on Acoustic Signal Enhancement (IWAENC).
IEEE.
Link zur Originalpublikation [12]
Ciba, S., Helwani, K., Wierstorf, H.,
Obermayer, K., Raake, A. and Spors, S. (2012). Employing a Binaural
Auditory Model to Classify Everyday Sound Events [13]. German
Annual Conference on Acoustics (DAGA)
Helwani, K., Rettberg, T., Buchner, H. and
Spors, S. (2012). Towards a Modular System for Real-Time
Multiple-Input/Mltiple-Output Audio Processing [14]. German Annual
Conference on Acoustics (DAGA)
Rettberg, T., Helwani, K., Spors, S. and
Buchner, H. (2012). Practical Aspects of the Calibration of Spherical
Microphone Arrays [15]. German Annual Conference on Acoustics
(DAGA). DEGA.
Spors, S., Helwani, K. and Ahrens, J. (2011).
Local sound field synthesis by virtual acoustic scattering and
time-reversal [16]. 131th Convention of the Audio Engineering
Society, 1–14.
Link zur Publikation [17] Link zur
Originalpublikation [18]
Helwani, K., Spors, S. and Buchner, H. (2011).
Spatio-temporal signal preprocessing for multichannel acoustic echo
cancellation [19]. Proc. IEEE Int. Conf. on Acoustics, Speech, and
Signal Processing (ICASSP)
Helwani, K., Buchner, H. and Spors, S. (2011).
Calibration of Microphone Arrays with Arbitrary Geometries [20].
German Annual Conference on Acoustics (DAGA). DEGA.
Buchner, H. and Helwani, K. (2010). On the
Relation Between Blind System Identification and Subspace Tracking and
Associated Generalizations [21]. Proc. Asilomar Conference on
Signals, Systems, and Computers. IEEE.
Helwani, K., Buchner, H. and Spors, S. (2010).
On the Robust and Efficient Computation of the Kalman Gain for
Multichannel Adaptive Filtering with Application to Acoustic Echo
Cancellation [22]. Proc. Asilomar Conference on Signals, Systems,
and Computers. IEEE.
Helwani, K., Buchner, H. and Spors, S. (2010).
Source-domain adaptive filtering for MIMO systems with application to
acoustic echo cancellation [23]. Proceedings of the IEEE
International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2010). IEEE, 321–324.
Spors, S., Buchner, H. and Helwani, K. (2009).
Block-based Multichannel Transform-Domain Adaptive Filtering [24].
European Signal Processing Conference (EUSIPCO)
Helwani, K., Lindau, A. and Weinzierl, S.
(2008). Efficiency of two-dimensional interpolation algorithms for
high-quality dynamic binaural synthesis [25]. J. Acoustical
Society of America, Volume 123, Issue 5
------
Links: ------
[1]
http://www.qu.tu-berlin.de/fileadmin/_migrated/pics
/Helwani_Karim_09.jpg
[2]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?cHash=de94014f28e
a94e7ff39f8ff4ada3004&type=1&tx_sibibtex_pi1%5B
sort%5D=author%3A0
[3]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?cHash=1270bf16df0
5cfc5afabef631992946b&type=1&tx_sibibtex_pi1%5B
sort%5D=year%3A0
[4]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?cHash=4b908d690c9
40552849d8f8892c78a0a&type=1&tx_sibibtex_pi1%5B
sort%5D=journal%3A0
[5]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%5
Bcontentelement%5D=tt_content%3A224999&tx_sibibtex_
pi1%5BshowUid%5D=11945012&cHash=9752966341def290f25
5d78ad714dd58
[6]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%5
Bcontentelement%5D=tt_content%3A224999&tx_sibibtex_
pi1%5BshowUid%5D=11945014&cHash=0501cb2246c45fb87c6
d847581acfef2
[7]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%5
Bcontentelement%5D=tt_content%3A224999&tx_sibibtex_
pi1%5BshowUid%5D=11945022&cHash=69eedf94440908e60fa
c6d88ba627a48
[8]
https://www.qu.tu-berlin.de/menue/team/alumni/karim
_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%5
Bcontentelement%5D=tt_content%3A224999&tx_sibibtex_
pi1%5BshowUid%5D=11945013&cHash=0e05f735ea5fcd943a2
34d3b69977ffd
[9]
https://labs-afi.telekom.de/projects/QU/Publication
s/Documents/MVDR_AES_SPL_Helwani_single_draft.pdf
[10]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944864&cHash=8ff2206ba7f055407c
2daf69baa7f016
[11]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944862&cHash=1c89335fc14433e583
e0530b2cdc00b7
[12]
https://labs-afi.telekom.de/projects/QU/Publicatio
ns/Documents/helwani_et_al_IWAENC2012.pdf
[13]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944847&cHash=1887cb1ac5268e5ce4
e4d0f2a4683f51
[14]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944863&cHash=e937db02adfbc098e1
b103049b9ba134
[15]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944915&cHash=b09f4116a717ef61fc
2b255326dd6b7e
[16]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944803&cHash=b7f1395f578953fc01
13f649d9215f93
[17]
https://www.qu.tu-berlin.de/fileadmin/fg41/publica
tions/spors_2011_local-sound-field-synthesis-by-virtual
-acoustic-scattering-and-time.-.reversal.pdf
[18]
http://soundfieldsynthesis.org/wp-content/uploads/
pubs/Spors_etal_AES131.pdf
[19]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944700&cHash=72a1a20e9ca76f19c8
738b9d21cf91bf
[20]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944699&cHash=ab848b5a02670a4cc8
817fcddc8b3504
[21]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944496&cHash=38ad7f518005d784f4
fc34e2de87c705
[22]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944527&cHash=ddc3cade03364c20e8
4942891dd73fb9
[23]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944528&cHash=5bd6f72fb43dc44782
2c5567bd2142ae
[24]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944450&cHash=5b885eb574c1082ab1
aecc0766ae7359
[25]
https://www.qu.tu-berlin.de/menue/team/alumni/kari
m_helwani/parameter/de/font4/minhilfe/?tx_sibibtex_pi1%
5Bcontentelement%5D=tt_content%3A224999&tx_sibibtex
_pi1%5BshowUid%5D=11944226&cHash=6b9623503f30d16b2b
7bfa6d825b3bd1