Löllmann, Heinrich
Dr.-Ing. Heinrich Löllmann, Akad. ORat
Department Elektrotechnik-Elektronik-Informationstechnik (EEI)
Lehrstuhl für Multimediakommunikation und Signalverarbeitung
Cauerstr. 7
91058 Erlangen
- Telefon: +49 9131 85-20173
- Faxnummer: +49 9131 85-28849
- E-Mail: heinrich.loellmann@fau.de
- Webseite: https://lms.tf.fau.de
Sprechzeiten
n.V.Forschungsgebiete
- Schätzung raumakustischer Größen
- Enthallung von Sprachsignalen
- Entwurf von Filterbänken
Abgeschlossene und laufende Abschlussarbeiten
Masterarbeiten
- Steigerung der Vorhersagenqualittät von elektrischen Antriebsgeräuschen
- Blind Reverberation Time Estimation from Multichannel Audio Recordings
- Noisy Speech Enhancement for Hearing Aids by Modification of Speech Onsets
- Development of Al-based Models for the Evaluation of Speech Quality
- Visual Speech Recognition in an Industrial Environment
- Evaluation of Machine Learning Approaches for Artifact Recognition in Immersive Audio
- Blind Estimation of the Reverberation Time based on Artificial Neural Networks
- Validation and Development of Distortion Dimension Indicators for Noisiness, Loudness and Discontinuity for Super-Wideband Speech Signals
Bachelorarbeiten
- CDR Estimation for Hearing Aid Applications
Forschungspraktika
- Learning-based CDR Estimation for Binaural Hearing Aids
- Decay Rate Classification for Blind Reverberation Time Estimation
- Reliability Measures for Blind T60 Estimation
- Blind Estimation of the Subband Reverberation Time
Lehrveranstaltungen
Vorlesungen
Übungen
Praktika
Publikationen
2021
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Effective Rank-Based Estimation of the Coherent-To-Diffuse Power Ratio
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Toronto, 6. Juni 2021 - 11. Juni 2021)
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2020
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The LOCATA Challenge: Acoustic Source Localization and Tracking
In: IEEE/ACM Transactions on Audio, Speech and Language Processing 28 (2020), S. 1620-1643
ISSN: 2329-9290
DOI: 10.1109/TASLP.2020.2990485
URL: https://ieeexplore.ieee.org/document/9079214
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Generalized Coherence-based Signal Enhancement
Internationl Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Barcelona, 4. Mai 2020 - 8. Mai 2020)
DOI: 10.1109/ICASSP40776.2020.9054470
BibTeX: Download - , , :
Acoustic Self-awareness of Autonomous Systems in a World of Sounds
In: Proceedings of the IEEE 7 (2020), S. 1127-1149
ISSN: 0018-9219
DOI: 10.1109/JPROC.2020.2977372
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2019
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Comparative Study of Single-Channel Algorithms for Blind Reverberation Time Estimation
International Congress on Acoustics (ICA) (Aachen, 9. September 2019 - 13. September 2019)
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2018
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LOCATA Challenge - Evaluation and Measures
International Workshop on Acoustic Signal Enhancement (IWAENC) (Tokyo, 17. September 2018 - 20. September 2018)
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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
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The LOCATA Challenge Data Corpus for Acoustic Source Localization and Tracking
IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM) (Sheffield, 8. Juli 2018 - 11. Juli 2018)
DOI: 10.1109/SAM.2018.8448644
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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)
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2017
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Microphone Array Signal Processing for Robot Audition
Joint Workshop on Hands-free Speech Communication and Microphone Arrays (HSCMA) (San Francisco, 1. März 2017 - 3. März 2017)
DOI: 10.1109/HSCMA.2017.7895560
URL: http://hscma2017.org/
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2016
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Acoustic Echo Control for Humanoid Robots
42. Deutsche Jahrestagung für Akustik (DAGA) (Aachen, 14. März 2016 - 17. März 2016)
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2015
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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. Oktober 2015 - 21. Oktober 2015)
DOI: 10.1109/WASPAA.2015.7336921
BibTeX: Download - , , , :
Single-Channel Maximum-Likelihood T60 Estimation Exploiting Subband Information
ACE Challenge Workshop (New Paltz (New York), 18. Oktober 2015 - 21. Oktober 2015)
URL: https://arxiv.org/abs/1511.04063
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2014
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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/
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2012
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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
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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
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Beamformer for Driving Binaural Speech Enhancement
International Workshop on Acoustic Signal Enhancement (IWAENC) (Aachen, 4. September 2012 - 6. September 2012)
In: VDE (Hrsg.): Proceedings of International Workshop on Acoustic Signal Enhancement (IWAENC), Berlin: 2012
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Efficient Speech Dereverberation for Binaural Hearing Aids
Efficient Speech Dereverberation for Binaural Hearing Aids (Braunschweig, 26. September 2012 - 28. September 2012)
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2011
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Allpass-Based Analysis-Synthesis Filter-Banks: Design and Application,
Aachen: Verlag Mainz, 2011
(Aachener Beiträge zu Digitalen Nachrichtensystemen, Bd.30)
ISBN: 3-861-30308-6
Open Access: http://darwin.bth.rwth-aachen.de/opus3/volltexte/2011/3843/pdf/3843.pdf
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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. Mai 2011 - 27. Mai 2011)
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2010
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Robust Equalizer Design for Allpass Transformed DFT Filter Banks with LTI Property
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Blind Dereverberation for Hearing Aids with Binaural Link
ITG-Fachtagung Sprachkommunikation (Bochum, 6. Oktober 2010 - 8. Oktober 2010)
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Least-Squares Design of DFT Filter-Banks Based on Allpass Transformation of Higher Order
In: IEEE Transactions on Signal Processing 58 (2010), S. 2393-2398
ISSN: 1053-587X
DOI: 10.1109/TSP.2009.2039838
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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
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2009
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Candidate Proposal for ITU-T Super-Wideband Speech and Audio Coding
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Honolulu)
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General Least-Squares Design of Allpass Transformed DFT Filter-Banks
European Signal Processing Conference (EUSIPCO) (Glasgow, 24. August 2009 - 28. August 2009)
In: EURASIP (Hrsg.): Proceedings of European Signal Processing Conference (EUSIPCO) 2009
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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. Oktober 2009 - 21. Oktober 2009)
In: IEEE (Hrsg.): Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) 2009
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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)
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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)
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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
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Reverberation Time Estimation for Speech Processing Applications
International Conference on Acoustics, including the 35th German Annual Conference on Acoustics (DAGA) (Rotterdam, 23. März 2009 - 26. März 2009)
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2008
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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
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Design of Multiple Order Allpass Transformed DFT Filter-Banks with Aliasing-Free Signal Reconstruction by Linear Programming
ITG-Fachtagung Sprachkommunikation (Aachen, 8. Oktober 2008 - 10. Oktober 2008)
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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. März 2008 - 4. April 2008)
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A Blind Algorithm for Joint Noise Suppression and Dereverberation
ITG-Fachtagung Sprachkommunikation (Aachen, 8. Oktober 2008 - 10. Oktober 2008)
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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. März 2008 - 4. April 2008)
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Low Delay Filter-Banks for Speech and Audio Processing
In: Eberhard Hänsler und Gerhard Schmidt (Hrsg.): Speech and Audio Processing in Adverse Environments, Berlin: Springer Verlag, 2008, S. 13-16
ISBN: 978-3-54070-601-4
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Near End Listening Enhancement by Means of Warped Low Delay Filter-Banks
ITG-Fachtagung Sprachkommunikation (Aachen, 8. Oktober 2008 - 10. Oktober 2008)
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2007
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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)
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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. Oktober 2007 - 24. Oktober 2007)
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Uniform and Warped Low Delay Filter-Banks for Speech Enhancement
In: Speech Communication 49 (2007), S. 574–587
ISSN: 0167-6393
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2006
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A Filter Structure for Low Delay Noise Suppression
ITG-Fachtagung Sprachkommunikation (Kiel, 26. April 2006 - 28. April 2006)
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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/
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Parametric Phase Equalizers for Warped Filter-Banks
European Signal Processing Conference (EUSIPCO) (Florence, 4. September 2006 - 8. September 2006)
In: EURASIP (Hrsg.): Proceedings of European Signal Processing Conference (EUSIPCO) 2006
Open Access: https://www.eurasip.org/Proceedings/Eusipco/Eusipco2006/HTML/main.htm
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Hands-Free Audio and its Application to Telecommunication Terminals
International AES Conference (Seoul, 2. September 2006 - 4. September 2006)
In: AEC (Hrsg.): Proceedings of International AES Conference, "Audio for Mobile and Handheld Devices" 2006
URL: http://www.aes.org/e-lib/browse.cfm?elib=13874
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2005
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Efficient Non-Uniform Filter-Bank Equalizer
European Signal Processing Conference (EUSIPCO) (Antalya, 4. September 2005 - 8. September 2005)
In: EURASIP (Hrsg.): Proceedings of European Signal Processing Conference (EUSIPCO) 2005
URL: http://www.eusipco2005.org
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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 (Hrsg.): Proceedings of European Conference on Speech Communication and Technology (INTERSPEECH) 2005
URL: http://interspeech2005.l2f.inesc-id.pt/
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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
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2002
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Robust Direction of Arrival Estimation for Speech Enhancement in Noisy Reverberant Rooms
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Orlando, 13. Mai 2002 - 17. Mai 2002)
In: IEEE (Hrsg.): Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2002
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Auszeichnungen
- : Wahl zum Mitglied Audio and Acoustic Signal Processing Technical Committe (AASP TC) – 2019
- : Ernennung zum IEEE Senior Member (IEEE) – 2018
- : Borchers-Plakette (RWTH Aachen) – 2013
- : Stipendium der Prof. Koepchen Stiftung (Prof. Koepchen Stiftung) – 1996
Patente
- Apparatus and method for driving an array of loudspeakers with drive signals (Schutzrecht: US10375503B2)
Erfinder: , , , , - Verfahren und Gerät zum Steuern einer Lautsprecheranordnung mit Steuersignalen (Schutzrecht: EP3275213B1)
Erfinder: , , , , , , , , ,
Spezielle Aufgaben
- CME-Fachstudienberater
- Raum- und Campo-Beauftragter