Dr.-Ing. Roland Maas

2018

• Hümmer C., Hofmann C., Maas R., Kellermann W.:
  Estimating parameters of nonlinear systems using the elitist particle filter based on evolutionary strategies
  In: IEEE/ACM Transactions on Audio, Speech and Language Processing 26 (2018), p. 595-608
  ISSN: 2329-9290
  DOI: 10.1109/taslp.2017.2788183
  BibTeX: Download

2017

• Kinoshita K., Delcroix M., Gannot S., Habets E., Haeb-Umbach R., Kellermann W., Leutnant V., Maas R., Nakatani T., Raj B., Sehr A., Yoshioka T.:
  The REVERB challenge: A benchmark task for reverberation-robust ASR techniques
  In: Shinji Watanabe, Marc Delcroix, Florian Metze, John R. Hershey (ed.): New Era for Robust Speech Recognition, Springer International Publishing AG 2017, 2017, p. 345 - 354 (Exploiting Deep Learning)
  ISBN: 978-3-319-64680-0
  DOI: 10.1007/978-3-319-64680-0_15
  URL: https://link.springer.com/chapter/10.1007/978-3-319-64680-0_15#citeas
  BibTeX: Download

2016

• Hümmer C., Schwarz A., Maas R., Barfuß H., Astudillo RF., Kellermann W.:
  A new uncertainty decoding scheme for DNN-HMM hybrid systems with multichannel speech enhancement
  International Conference on Acoustics, Speech and Signal Processing (ICASSP) (Shanghai, 20. March 2016 - 25. March 2016)
  DOI: 10.1109/ICASSP.2016.7472781
  BibTeX: Download
• Kinoshita K., Delcroix M., Gannot S., Habets E., Haeb-Umbach R., Kellermann W., Leutnant V., Maas R., Nakatani T., Raj B., Sehr A., Yoshioka T.:
  A summary of the REVERB challenge: State-of-the-art and remaining challenges in reverberant speech processing research
  In: EURASIP Journal on Advances in Signal Processing 2016 (2016), p. 1-19
  ISSN: 1687-6172
  DOI: 10.1186/s13634-016-0306-6
  BibTeX: Download
• Maas R.:
  Uncertainty Decoding for Reverberation-Robust Automatic Speech Recognition (Dissertation, 2016)
  URL: http://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/7255
  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
• Hümmer C., Maas R., Hofmann C., Kellermann W.:
  A Bayesian network approach to linear and nonlinear acoustic echo cancellation
  In: EURASIP Journal on Advances in Signal Processing 2015 (2015), p. 1-11
  ISSN: 1687-6172
  DOI: 10.1186/s13634-015-0282-2
  BibTeX: Download
• Hümmer C., Maas R., Kellermann W.:
  The NLMS algorithm with time-variant optimum stepsize derived from a Bayesian network perspective
  In: IEEE Signal Processing Letters 22 (2015), p. 1874-1878
  ISSN: 1070-9908
  DOI: 10.1109/LSP.2015.2439392
  BibTeX: Download
• Hümmer C., Maas R., Schwarz A., Astudillo RF., Kellermann W.:
  Uncertainty decoding for DNN-HMM hybrid systems based on numerical sampling
  Annual Conference of the International Speech Communication Association (Interspeech) (Dresden, 6. September 2015 - 10. September 2015)
  BibTeX: Download
• Maas R., Hümmer C., Sehr A., Kellermann W.:
  A Bayesian view on acoustic model-based techniques for robust speech recognition
  In: EURASIP Journal on Advances in Signal Processing 2015 (2015), p. 1-16
  ISSN: 1687-6172
  DOI: 10.1186/s13634-015-0287-x
  BibTeX: Download
• Schwarz A., Hümmer C., Maas R., Kellermann W.:
  Real-time dereverberation for deep neural network speech recognition
  Jahrestagung für Akustik (DAGA) (Nuremberg, 16. March 2015 - 19. March 2015)
  DOI: 10.13140/RG.2.1.3660.0480
  BibTeX: Download
• Schwarz A., Hümmer C., Maas R., Kellermann W.:
  Spatial diffuseness features for DNN-based speech recognition in noisy and reverberant environments
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Brisbane, 19. April 2015 - 24. April 2015)
  DOI: 10.1109/ICASSP.2015.7178798
  BibTeX: Download

2014

• Hümmer C., Hofmann C., Maas R., Kellermann W.:
  The significance-aware EPFES to estimate a memoryless preprocessor for nonlinear acoustic echo cancellation
  IEEE Global Conference on Signal and Information Processing (GlobalSIP) (Atlanta, GA, 3. December 2014 - 5. December 2014)
  DOI: 10.1109/GlobalSIP.2014.7032179
  BibTeX: Download
• Hümmer C., Hofmann C., Maas R., Schwarz A., Kellermann W.:
  The elitist particle filter based on evolutionary strategies as novel approach for nonlinear acoustic echo cancellation
  2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Florence, 4. May 2014 - 9. May 2014)
  DOI: 10.1109/ICASSP.2014.6853810
  BibTeX: Download
• Maas R., Hümmer C., Hofmann C., Kellermann W.:
  On Bayesian networks in speech signal processing
  11. ITG Symposium on Speech Communication (Erlangen, 24. September 2014 - 26. September 2014)
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84939547913∨igin=inward
  BibTeX: Download
• Maas R., Hümmer C., Schwarz A., Hofmann C., Kellermann W.:
  A Bayesian network view on linear and nonlinear acoustic echo cancellation
  2nd IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 (Xi'an, 9. July 2014 - 13. July 2014)
  DOI: 10.1109/ChinaSIP.2014.6889292
  BibTeX: Download
• Sehr A., Barfuß H., Hofmann C., Maas R., Kellermann W.:
  Efficient training of acoustic models for reverberation-robust medium-vocabulary automatic speech recognition
  Joint Workshop on Hands-Free Speech Communication and Microphone Arrays (HSCMA) (Nancy, 12. May 2014 - 14. May 2014)
  DOI: 10.1109/HSCMA.2014.6843275
  BibTeX: Download

2013

• Hofmann C., Sehr A., Sahoo SK., Maas R., Kellermann W.:
  New results on automatic speech recognition in extremely reverberant environments
  AIA-DAGA Conference on Acoustics (Merano, 18. March 2013 - 21. March 2013)
  BibTeX: Download
• Kinoshita K., Delcroix M., Yoshioka T., Nakatani T., Habets E., Haeb-Umbach R., Leutnant V., Sehr A., Kellermann W., Maas R., Gannot S., Raj B.:
  The REVERB challenge: Acommon evaluation framework for dereverberation and recognition of reverberant speech
  IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (New Paltz, NY, 20. October 2013 - 23. October 2013)
  DOI: 10.1109/WASPAA.2013.6701894
  BibTeX: Download
• Maas R., Sehr A., Yoshioka T., Delcroix M., Kinoshita K., Nakatani T., Kellermann W.:
  Formulation of the REMOS concept from an uncertainty decoding perspective
  International Conference on Digital Signal Processing (DSP) (Santorini, 1. July 2013 - 3. July 2013)
  DOI: 10.1109/ICDSP.2013.6622698
  BibTeX: Download
• Maas R., Thippur A., Sehr A., Kellermann W.:
  An uncertainty decoding approach to noise- and reverberation-robust speech recognition
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Vancouver, BC, 26. May 2013 - 31. May 2013)
  DOI: 10.1109/ICASSP.2013.6639098
  BibTeX: Download
• Sehr A., Yoshioka T., Delcroix M., Kinoshita K., Nakatani T., Maas R., Kellermann W.:
  Conditional emission densities for combining speech enhancement and recognition systems
  Annual Conference of the International Speech Communication Association (Interspeech) (Lyon, 25. August 2013 - 29. August 2013)
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84906212744∨igin=inward
  BibTeX: Download

2012

• Maas R., Habets E., Sehr A., Kellermann W.:
  On the application of reverberation suppression to robust speech recognition
  IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) (Kyoto, 25. March 2012 - 30. March 2012)
  DOI: 10.1109/ICASSP.2012.6287875
  BibTeX: Download
• Maas R., Kotha SR., Sehr A., Kellermann W.:
  Combined-order hidden Markov models for reverberation-robust speech recognition
  3rd International Workshop on Cognitive Information Processing (CIP) (Baiona, 28. May 2012 - 30. May 2012)
  DOI: 10.1109/CIP.2012.6232918
  BibTeX: Download
• Maas R., Schwarz A., Reindl K., Zheng Y., Meier S., Sehr A., Kellermann W.:
  Matching the acoustic model to front-end signal processing for ASR in noisy and reverberant environments
  Deutsche Jahrestagung für Akustik (DAGA) (Darmstadt, 19. March 2012 - 22. March 2012)
  URL: https://www.researchgate.net/publication/262767652_Matching_the_Acoustic_Model_to_Front-End_Signal_Processing_for_ASR_in_Noisy_and_Reverberant_Environments
  BibTeX: Download
• Reindl K., Maas R., Schwarz A., Zheng Y., Meier S., Sehr A., Kellermann W.:
  A stereophonic acoustic front-end for distant-talking interfaces based on blind source separation
  Deutsche Jahrestagung für Akustik (DAGA) (Darmstadt, 19. March 2012 - 22. March 2012)
  In: Deutsche Jahrestagung für Akustik (DAGA), Darmstadt, Germany: 2012
  URL: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.433.2190
  BibTeX: Download
• Reindl K., Zheng Y., Schwarz A., Meier S., Maas R., Sehr A., Kellermann W.:
  A stereophonic acoustic signal extraction scheme for noisy and reverberant environments
  In: Computer Speech and Language 27 (2012), p. 726-745
  ISSN: 0885-2308
  DOI: 10.1016/j.csl.2012.07.011
  BibTeX: Download
• Yoshioka T., Sehr A., Delcroix M., Kinoshita K., Maas R., Nakatani T., Kellermann W.:
  Making machines understand us in reverberant rooms: Robustness against reverberation for automatic speech recognition
  In: IEEE Signal Processing Magazine 29 (2012), p. 114-126
  ISSN: 1053-5888
  DOI: 10.1109/MSP.2012.2205029
  BibTeX: Download
• Yoshioka T., Sehr A., Delcroix M., Kinoshita K., Maas R., Nakatani T., Kellermann W.:
  Survey on approaches to speech recognition in reverberant environments
  Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC) (Los Angeles, 3. December 2012 - 6. December 2012)
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84874408684∨igin=inward
  BibTeX: Download

2011

• Maas R., Schwarz A., Zheng Y., Reindl K., Meier S., Sehr A., Kellermann W.:
  A Two-Channel Acoustic Front-End for Robust Automatic Speech Recognition in Noisy and Reverberant Environments
  International Workshop on Machine Listening in Multisource Environments (CHiME) (Florence, 1. September 2011)
  In: International Workshop on Machine Listening in Multisource Environments (CHiME), Florence, Italy: 2011
  BibTeX: Download
• Maas R., Sehr A., Kellermann W.:
  Reverberation Modeling for Robust Speech Recognition
  Deutsche Jahrestagung für Akustik (DAGA) (Düsseldorf, 21. March 2011 - 24. March 2011)
  In: Deutsche Jahrestagung für Akustik (DAGA), Düsseldorf, Germany: 2011
  BibTeX: Download
• Maas R., Wolf M., Sehr A., Nadeu C., Kellermann W.:
  Extension of the remos concept to frequency-filtering-based features for reverberation-robust speech recognition
  2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11 (Edinburgh, 30. May 2011 - 1. June 2011)
  DOI: 10.1109/HSCMA.2011.5942381
  BibTeX: Download
• Sehr A., Hofmann C., Maas R., Kellermann W.:
  Multi-style training of HMMS with stereo data for reverberation-robust speech recognition
  2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11 (Edinburgh, 30. May 2011 - 1. June 2011)
  DOI: 10.1109/HSCMA.2011.5942396
  BibTeX: Download
• Sehr A., Maas R., Kellermann W.:
  Frame-wise HMM adaptation using state-dependent reverberation estimates
  36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 (Prague, 22. May 2011 - 27. May 2011)
  DOI: 10.1109/ICASSP.2011.5947600
  BibTeX: Download

2010

• Maas R., Sehr A., Gugat M., Kellermann W.:
  A highly efficient optimization scheme for remos-based distant-talking speech recognition
  18th European Signal Processing Conference, EUSIPCO 2010 (Aalborg, 23. August 2010 - 27. August 2010)
  DOI: 10.5281/zenodo.41948
  BibTeX: Download
• Maas R., Sehr A., Kellermann W.:
  Multi-Style Reverberation Models and Efficient Model Adaptation for Robust Distant-Talking Speech Recognition with REMOS
  ITG Conference on Speech Communication (Bochum, 6. October 2010 - 8. October 2010)
  In: ITG Conference on Speech Communication, Bochum, Germany: 2010
  BibTeX: Download
• Sehr A., Habets E., Maas R., Kellermann W.:
  Towards a better understanding of the effect of reverberation on speech recognition performance
  Proc. International Workshop on Acoustic Echo and Noise Control (IWAENC) (Tel Aviv, 30. August 2010 - 2. September 2010)
  In: Proc. International Workshop on Acoustic Echo and Noise Control (IWAENC), Tel Aviv, Israel: 2010
  BibTeX: Download
• Sehr A., Hofmann C., Maas R., Kellermann W.:
  A novel approach for matched reverberant training of HMMs using data pairs
  11th Annual Conference of the International Speech Communication Association: Spoken Language Processing for All, INTERSPEECH 2010 (Makuhari, Chiba, 26. September 2010 - 30. September 2010)
  URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79959848054∨igin=inward
  BibTeX: Download
• Sehr A., Maas R., Kellermann W.:
  Model-based dereverberation in the logmelspec domain for robust distant-talking speech recognition
  2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 (Dallas, TX, 14. March 2010 - 19. March 2010)
  DOI: 10.1109/ICASSP.2010.5495671
  BibTeX: Download
• Sehr A., Maas R., Kellermann W.:
  Reverberation model-based decoding in the logmelspec domain for robust distant-talking speech recognition
  In: IEEE Transactions on Audio Speech and Language Processing 18 (2010), p. 1676-1691
  ISSN: 1558-7916
  DOI: 10.1109/TASL.2010.2050511
  BibTeX: Download