Dr.-Ing. Heinrich Löllmann

2021

• Löllmann H., Brendel A., Kellermann W.:
  Effective Rank-Based Estimation of the Coherent-To-Diffuse Power Ratio
  IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Toronto, 6. June 2021 - 11. June 2021)
  DOI: 10.1109/icassp39728.2021.9413985
  BibTeX: Download

2020

• Evers C., Löllmann H., Mellmann H., Schmidt A., Barfuß H., Naylor P., Kellermann W.:
  The LOCATA Challenge: Acoustic Source Localization and Tracking
  In: IEEE/ACM Transactions on Audio, Speech and Language Processing 28 (2020), p. 1620-1643
  ISSN: 2329-9290
  DOI: 10.1109/TASLP.2020.2990485
  URL: https://ieeexplore.ieee.org/document/9079214
  BibTeX: Download
• Löllmann H., Brendel A., Kellermann W.:
  Generalized Coherence-based Signal Enhancement
  Internationl Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Barcelona, 4. May 2020 - 8. May 2020)
  DOI: 10.1109/ICASSP40776.2020.9054470
  BibTeX: Download
• Schmidt A., Löllmann H., Kellermann W.:
  Acoustic Self-awareness of Autonomous Systems in a World of Sounds
  In: Proceedings of the IEEE 7 (2020), p. 1127-1149
  ISSN: 0018-9219
  DOI: 10.1109/JPROC.2020.2977372
  BibTeX: Download

2019

• Löllmann H., Brendel A., Kellermann W.:
  Comparative Study of Single-Channel Algorithms for Blind Reverberation Time Estimation
  International Congress on Acoustics (ICA) (Aachen, 9. September 2019 - 13. September 2019)
  BibTeX: Download

2018

• Evers C., Löllmann H., Mellmann H., Schmidt A., Barfuß H., Naylor P., Kellermann W.:
  LOCATA Challenge - Evaluation and Measures
  International Workshop on Acoustic Signal Enhancement (IWAENC) (Tokyo, 17. September 2018 - 20. September 2018)
  DOI: 10.1109/iwaenc.2018.8521288
  BibTeX: Download
• Löllmann H., Brendel A., Kellermann W.:
  Efficient ML-Estimator for Blind Reverberation Time Estimation
  European Signal Processing Conference (EUSIPCO) (Rome, 3. September 2018 - 7. September 2018)
  DOI: 10.23919/EUSIPCO.2018.8553001
  BibTeX: Download
• Löllmann H., Evers C., Schmidt A., Mellmann H., Barfuß H., Naylor PA., Kellermann W.:
  The LOCATA Challenge Data Corpus for Acoustic Source Localization and Tracking
  IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM) (Sheffield, 8. July 2018 - 11. July 2018)
  DOI: 10.1109/SAM.2018.8448644
  BibTeX: Download
• Schmidt A., Löllmann H., Kellermann W.:
  A novel ego-noise suppression algorithm for acoustic signal enhancement in autonomous systems
  IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Calgary, 15. April 2018 - 20. April 2018)
  DOI: 10.1109/icassp.2018.8462211
  BibTeX: Download

2017

• Löllmann H., Moore AH., Naylor PA., Rafaely B., Horaud R., Mazel A., Kellermann W.:
  Microphone Array Signal Processing for Robot Audition
  Joint Workshop on Hands-free Speech Communication and Microphone Arrays (HSCMA) (San Francisco, 1. March 2017 - 3. March 2017)
  DOI: 10.1109/HSCMA.2017.7895560
  URL: http://hscma2017.org/
  BibTeX: Download

2016

• El-Rayyes A., Löllmann H., Hofmann C., Kellermann W.:
  Acoustic Echo Control for Humanoid Robots
  42. Deutsche Jahrestagung für Akustik (DAGA) (Aachen, 14. March 2016 - 17. March 2016)
  BibTeX: Download

2015

• Bürger M., Maas R., Löllmann H., Kellermann W.:
  Multizone sound field synthesis based on the joint optimization of the sound pressure and particle velocity vector on closed contours
  IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (New Paltz, NY, 18. October 2015 - 21. October 2015)
  DOI: 10.1109/WASPAA.2015.7336921
  BibTeX: Download
• Löllmann H., Brendel A., Vary P., Kellermann W.:
  Single-Channel Maximum-Likelihood T60 Estimation Exploiting Subband Information
  ACE Challenge Workshop (New Paltz (New York), 18. October 2015 - 21. October 2015)
  URL: https://arxiv.org/abs/1511.04063
  BibTeX: Download

2014

• Löllmann H., Barfuß H., Deleforge A., Kellermann W.:
  Challenges in Acoustic Signal Enhancement for Human-Robot Communication
  11. ITG Fachtagung Sprachkommunikation (Erlangen, 24. September 2014 - 26. September 2014)
  URL: http://lms.lnt.de/itgspeech2014/
  BibTeX: Download

2012

• Gaubitch N., Löllmann H., Jeub M., Falk T., Naylor PA.:
  Performance Comparison of Algorithms for Blind Reverberation Time Estimation from Speech
  International Workshop on Acoustic Signal Enhancement (IWAENC) (Aachen, 4. September 2012 - 6. September 2012)
  In: Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Berlin: 2012
  BibTeX: Download
• Löllmann H., Dartmann G., Vary P.:
  Constrained Design of Allpass Transformed DFT Filter-Banks by Quadratic Programming
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Kyoto)
  DOI: 10.1109/ICASSP.2012.6288666
  BibTeX: Download
• Löllmann H., Vary P.:
  Beamformer for Driving Binaural Speech Enhancement
  International Workshop on Acoustic Signal Enhancement (IWAENC) (Aachen, 4. September 2012 - 6. September 2012)
  In: VDE (ed.): Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Berlin: 2012
  BibTeX: Download
• Löllmann H., Vary P.:
  Efficient Speech Dereverberation for Binaural Hearing Aids
  Efficient Speech Dereverberation for Binaural Hearing Aids (Braunschweig, 26. September 2012 - 28. September 2012)
  BibTeX: Download

2011

• Löllmann H.:
  Allpass-Based Analysis-Synthesis Filter-Banks: Design and Application,
  Aachen: Verlag Mainz, 2011
  (Aachener Beiträge zu Digitalen Nachrichtensystemen, Vol.30)
  ISBN: 3-861-30308-6
  Open Access: http://darwin.bth.rwth-aachen.de/opus3/volltexte/2011/3843/pdf/3843.pdf
  BibTeX: Download
• Löllmann H., Vary P.:
  Estimation of the Frequency Dependent Reverberation Time by means of Warped Filter-Banks
  IEEE International Conference on Acoustics, Speech and Language Processing (ICASSP) (Prague, 22. May 2011 - 27. May 2011)
  BibTeX: Download

2010

• Altenbach F., Löllmann H., Mathar R.:
  Robust Equalizer Design for Allpass Transformed DFT Filter Banks with LTI Property
  BibTeX: Download
• Jeub M., Löllmann H., Vary P.:
  Blind Dereverberation for Hearing Aids with Binaural Link
  ITG-Fachtagung Sprachkommunikation (Bochum, 6. October 2010 - 8. October 2010)
  BibTeX: Download
• Löllmann H., Vary P.:
  Least-Squares Design of DFT Filter-Banks Based on Allpass Transformation of Higher Order
  In: IEEE Transactions on Signal Processing 58 (2010), p. 2393-2398
  ISSN: 1053-587X
  DOI: 10.1109/TSP.2009.2039838
  BibTeX: Download
• Löllmann H., Yilmaz E., Vary P.:
  An Improved Algorithm for Blind Reverberation Time Estimation
  International Workshop on Acoustic Echo and Noise Control (IWAENC) (Tel Aviv, 30. August 2010 - 2. September 2010)
  In: Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC) 2010
  BibTeX: Download

2009

• Geiser B., Krüger H., Löllmann H., Vary P., Zhang D., Wan H., Li HT., Zhang LB.:
  Candidate Proposal for ITU-T Super-Wideband Speech and Audio Coding
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Honolulu)
  BibTeX: Download
• Löllmann H., Dartmann G., Vary P.:
  General Least-Squares Design of Allpass Transformed DFT Filter-Banks
  European Signal Processing Conference (EUSIPCO) (Glasgow, 24. August 2009 - 28. August 2009)
  In: EURASIP (ed.): Proceedings of European Signal Processing Conference (EUSIPCO) 2009
  BibTeX: Download
• Löllmann H., Hildenbrand M., Geiser B., Vary P.:
  IIR QMF-Bank Design for Speech and Audio Subband Coding
  IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (New Paltz, 18. October 2009 - 21. October 2009)
  In: IEEE (ed.): Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) 2009
  BibTeX: Download
• Löllmann H., Vary P.:
  A Blind Speech Enhancement Algorithm for the Suppression of Late Reverberation and Noise
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Taipei, 19. April 2009 - 24. April 2009)
  BibTeX: Download
• Löllmann H., Vary P.:
  Design of Critically Subsampled DFT Filter-Banks with Allpass Polyphase Filters and Near-Perfect Reconstruction
  IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Taipei, 19. April 2009 - 24. April 2009)
  BibTeX: Download
• Löllmann H., Vary P.:
  Low Delay Noise Reduction and Dereverberation for Hearing Aids
  In: EURASIP Journal on Advances in Signal Processing (2009)
  ISSN: 1687-6172
  DOI: 10.1155/2009/437807
  BibTeX: Download
• Löllmann H., Vary P.:
  Reverberation Time Estimation for Speech Processing Applications
  International Conference on Acoustics, including the 35th German Annual Conference on Acoustics (DAGA) (Rotterdam, 23. March 2009 - 26. March 2009)
  BibTeX: Download

2008

• Löllmann H.:
  Estimation of the Reverberation Time in Noisy Environments
  International Workshop on Acoustic Echo and Noise Control (IWAENC) (Seattle, 14. September 2008 - 17. September 2008)
  Open Access: http://www.iwaenc.org/proceedings/2008/start.html
  BibTeX: Download
• Löllmann H., Dartmann G., Vary P.:
  Design of Multiple Order Allpass Transformed DFT Filter-Banks with Aliasing-Free Signal Reconstruction by Linear Programming
  ITG-Fachtagung Sprachkommunikation (Aachen, 8. October 2008 - 10. October 2008)
  BibTeX: Download
• Löllmann H., Dartmann G., Vary P.:
  Least-Squares Design of Subsampled Allpass Transformed DFT Filter-Banks with LTI Property
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Las Vegas, 30. March 2008 - 4. April 2008)
  BibTeX: Download
• Löllmann H., Vary P.:
  A Blind Algorithm for Joint Noise Suppression and Dereverberation
  ITG-Fachtagung Sprachkommunikation (Aachen, 8. October 2008 - 10. October 2008)
  BibTeX: Download
• Löllmann H., Vary P.:
  Design of IIR QMF Banks with Near-Perfect Reconstruction and Low Complexity
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Las Vegas, 30. March 2008 - 4. April 2008)
  BibTeX: Download
• Löllmann H., Vary P.:
  Low Delay Filter-Banks for Speech and Audio Processing
  In: Eberhard Hänsler und Gerhard Schmidt (ed.): Speech and Audio Processing in Adverse Environments, Berlin: Springer Verlag, 2008, p. 13-16
  ISBN: 978-3-54070-601-4
  BibTeX: Download
• Sauert B., Löllmann H., Vary P.:
  Near End Listening Enhancement by Means of Warped Low Delay Filter-Banks
  ITG-Fachtagung Sprachkommunikation (Aachen, 8. October 2008 - 10. October 2008)
  BibTeX: Download

2007

• Löllmann H., Vary P.:
  Improved Design of Oversampled Allpass Transformed DFT Filter-Banks with Near-Perfect Reconstruction
  European Signal Processing Conference (EUSIPCO) (Poznan, 3. September 2007 - 7. September 2007)
  BibTeX: Download
• Löllmann H., Vary P.:
  Post-Filter Design for Superdirective Beamformers with Closely Spaced Microphones
  IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (New Paltz, 21. October 2007 - 24. October 2007)
  BibTeX: Download
• Löllmann H., Vary P.:
  Uniform and Warped Low Delay Filter-Banks for Speech Enhancement
  In: Speech Communication 49 (2007), p. 574–587
  ISSN: 0167-6393
  BibTeX: Download

2006

• Löllmann H., Vary P.:
  A Filter Structure for Low Delay Noise Suppression
  ITG-Fachtagung Sprachkommunikation (Kiel, 26. April 2006 - 28. April 2006)
  BibTeX: Download
• Löllmann H., Vary P.:
  A Warped Low Delay Filter for Speech Enhancement
  International Workshop on Acoustic Echo and Noise Control (IWAENC) (Paris, 12. September 2006 - 14. September 2006)
  In: Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC) 2006
  Open Access: http://www.iwaenc06.enst.fr/iwaenc2006/
  BibTeX: Download
• Löllmann H., Vary P.:
  Parametric Phase Equalizers for Warped Filter-Banks
  European Signal Processing Conference (EUSIPCO) (Florence, 4. September 2006 - 8. September 2006)
  In: EURASIP (ed.): Proceedings of European Signal Processing Conference (EUSIPCO) 2006
  Open Access: https://www.eurasip.org/Proceedings/Eusipco/Eusipco2006/HTML/main.htm
  BibTeX: Download
• Schönle M., Beaugeant C., Steinert K., Löllmann H., Sauert B., Vary P.:
  Hands-Free Audio and its Application to Telecommunication Terminals
  International AES Conference (Seoul, 2. September 2006 - 4. September 2006)
  In: AEC (ed.): Proceedings of International AES Conference, "Audio for Mobile and Handheld Devices" 2006
  URL: http://www.aes.org/e-lib/browse.cfm?elib=13874
  BibTeX: Download

2005

• Löllmann H., Vary P.:
  Efficient Non-Uniform Filter-Bank Equalizer
  European Signal Processing Conference (EUSIPCO) (Antalya, 4. September 2005 - 8. September 2005)
  In: EURASIP (ed.): Proceedings of European Signal Processing Conference (EUSIPCO) 2005
  URL: http://www.eusipco2005.org
  BibTeX: Download
• Löllmann H., Vary P.:
  Generalized Filter-Bank Equalizer for Noise Reduction with Reduced Signal Delay
  European Conference on Speech Communication and Technology (INTERSPEECH) (Lisbon, 4. September 2005 - 8. September 2005)
  In: ISCA (ed.): Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH) 2005
  URL: http://interspeech2005.l2f.inesc-id.pt/
  BibTeX: Download
• Löllmann H., Vary P.:
  Low Delay Filter for Adaptive Noise Reduction,
  International Workshop on Acoustic Echo and Noise Control (IWAENC) (Eindhoven, 12. September 2005 - 15. September 2005)
  In: Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC) 2005
  Open Access: http://www.iwaenc.org/proceedings/2005/iwaenc2005.html
  URL: http://www.iwaenc.org/proceedings/2005/iwaenc2005.html
  BibTeX: Download

2002

• Lotter T., Löllmann H., Vary P.:
  Robust Direction of Arrival Estimation for Speech Enhancement in Noisy Reverberant Rooms
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Orlando, 13. May 2002 - 17. May 2002)
  In: IEEE (ed.): Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2002
  BibTeX: Download

• Heinrich Löllmann: Wahl zum Mitglied Audio and Acoustic Signal Processing Technical Committe (AASP TC) – 2019
• Heinrich Löllmann: Ernennung zum IEEE Senior Member (IEEE) – 2018
• Heinrich Löllmann: Borchers-Plakette (RWTH Aachen) – 2013
• Heinrich Löllmann: Stipendium der Prof. Koepchen Stiftung (Prof. Koepchen Stiftung) – 1996

• Apparatus and method for driving an array of loudspeakers with drive signals (Property Right: US10375503B2)
  Inventor(s): Michael Bürger, Heinrich Löllmann, Walter Kellermann, Peter Grosche, Yue Lang
• Method and apparatus for driving an array of loudspeakers with drive signals (Property Right: EP3275213B1)
  Inventor(s): Michael Bürger, Thomas Richter, Mengqiu Zhang, Heinrich Löllmann, Walter Kellermann, André Kaup, Yue Lang, Peter Grosche, Karim Helwani, Giovanni Cordara