Publications

Publications

Booklets

  1. Richard C. Hendriks, Timo Gerkmann, Jesper Jensen, "DFT-Domain Based Single-Microphone Noise Reduction for Speech Enhancement - A Survey of the State of the Art", Synthesis Lectures on Speech and Audio Processing, Morgan & Claypool Publishers, pp. 1-80, Jan. 2013.
  2. Timo Gerkmann, "Statistical Analysis of Cepstral Coefficients and Applications in Speech Enhancement", Verlag Dr. Hut, ISBN 978-3-86853-696-6, Dec. 2010.

Journals

    2016

  1. Martin Krawczyk-Becker, Timo Gerkmann, "On MMSE-Based Estimation of Amplitude and Complex Speech Spectral Coefficients Under Phase-Uncertainty", IEEE/ACM Trans. Audio, Speech, Language Proc., Vol. 24, No. 12, pp. 2251-2262, Dec. 2016.
  2. Martin Krawczyk-Becker, Timo Gerkmann, "An evaluation of the perceptual quality of phase-aware single-channel speech enhancement", Journal of the Acoustical Society of America, 140, EL364-EL369, Oct. 2016. [audio]
  3. Martin Krawczyk-Becker, Timo Gerkmann, "Fundamental Frequency Informed Speech Enhancement in a Flexible Statistical Framework", IEEE/ACM Trans. Audio, Speech, Language Proc., Vol. 24, No. 5, pp. 940-951, May 2016.

    4.  

    2015

  4. R.M. Baumgärtel, M. Krawczyk-Becker, D. Marquardt, C. Völker, H. Hu, T. Herzke, G. Coleman, K. Adiloglu, S.M.A Ernst, T. Gerkmann, S. Doclo, B. Kollmeier, V. Hohmann, M. Dietz, "Comparing Binaural Pre-Processing Strategies I: Instrumental Evaluation", Trends in Hearing, Vol. 19, 2015.
  5. R.M. Baumgärtel, H. Hu, M. Krawczyk-Becker, D. Marquardt, T. Herzke, G. Coleman, K. Adiloglu, K. Bomke, K. Plotz, T. Gerkmann, S. Doclo, S., B. Kollmeier, V. Hohmann, M. Dietz, "Comparing Binaural Pre-Processing Strategies II: Speech Intelligibility of Bilateral Cochlear Implant Users", Trends in Hearing, Vol. 19, 2015.
  6. Benjamin Cauchi, Ina Kodrasi, Robert Rehr, Stephan Gerlach, Ante Jukic, Timo Gerkmann, Simon Doclo, Stefan Goetze, "Combination of MVDR beamforming and single-channel spectral processing for enhancing noisy and reverberant speech", EURASIP Journal on Advances in Signal Processing, Dec. 2015.
  7. Feifei Xiong, Bernd T. Meyer, Niko Moritz, Robert Rehr, Joern Anemueller, Timo Gerkmann, Simon Doclo, Stefan Goetze, "Front-End Technologies for Robust ASR in Reverberant Environments - Spectral Enhancement-based Dereverberation and Auditory Modulation Filterbank", EURASIP Journal on Advances in Signal Processing, Dec. 2015.
  8. Ante Jukić, Toon van Waterschoot, Timo Gerkmann, Simon Doclo, "Multi-Channel Linear Prediction-Based Speech Dereverberation With Sparse Priors", IEEE/ACM Trans. Audio, Speech, Language Proc., Vol. 23, No. 9, pp. 1509-1520, Sep. 2015.
  9. Lin Wang, Timo Gerkmann, Simon Doclo, "Noise Power Spectral Density Estimation Using MaxNSR Blocking Matrix", IEEE/ACM Trans. Audio, Speech, Language Proc., Vol. 23, No. 9, pp. 1493-1508, Sep. 2015.
  10. Timo Gerkmann, Martin Krawczyk-Becker, Jonathan Le Roux, "Phase Processing for Single Channel Speech Enhancement: History and Recent Advances", IEEE Signal Processing Magazine, Vol. 32, No. 2, pp. 55-66, Mar. 2015.
  11. Alexander Schasse, Timo Gerkmann, Rainer Martin, Wolfgang Sörgel, Thomas Pilgrim, Henning Puder, "Two-Stage Filter-Bank System for Improved Single-Channel Noise Reduction in Hearing Aids", IEEE Trans. Audio, Speech, Language Proc., Vol. 23, No. 2, pp. 383-393, Feb. 2015.

    12.  

    2014

  12. Martin Krawczyk, Timo Gerkmann, "STFT Phase Reconstruction in Voiced Speech for an Improved Single-Channel Speech Enhancement", IEEE/ACM Trans. Audio, Speech, Language Proc., Vol. 22, No. 12, pp. 1931-1940, Dec. 2014. [Audio + Code]
  13. Timo Gerkmann, "Bayesian estimation of clean speech spectral coefficients given a priori knowledge of the phase", IEEE Trans. Signal Processing, Vol. 62, No. 16, pp. 4199-4208, 15 Aug. 2014. [Audio]

    14.  

    2013

  14. Timo Gerkmann, Martin Krawczyk, "MMSE-Optimal Spectral Amplitude Estimation Given the STFT-Phase", IEEE Signal Processing Letters, Vol. 20, No. 2, pp. 129-132, Feb. 2013. [Audio]

     

    15. 2012

  15. Timo Gerkmann, Richard C. Hendriks, "Unbiased MMSE-based Noise Power Estimation with Low Complexity and Low Tracking Delay", IEEE Trans. Audio, Speech and Language Processing, Vol. 20, No. 4, pp. 1383 - 1393, May 2012. [Code and audio]
  16. Richard C. Hendriks, Timo Gerkmann, "Noise Correlation Matrix Estimation for Multi-Microphone Speech Enhancement", IEEE Trans. Audio, Speech and Language Processing, Vol. 20, No. 1, pp. 223-233. Jan. 2012.

     

    17. 2011

  17. Rainer Martin, Timo Gerkmann, "Besser Hören dank Algorithmen", Deutsche Zeitschrift für klinische Forschung, pp. 38-43, Sep. 2011.
  18. Rainer Martin, Timo Gerkmann, "Besser Hören dank Algorithmen: Wie digitale Signalverarbeitung Hörgeräte verbessert und die Kommunikation erleichtert", rubin Wissenschaftsmagazin, Spring 2011.

     

    19. 2009

  19. Timo Gerkmann, Rainer Martin, "On the Statistics of Spectral Amplitudes After Variance Reduction by Temporal Cepstrum Smoothing and Cepstral Nulling", IEEE Trans. Signal Processing, Vol. 57, No. 11, pp. 4165-4174, Nov. 2009.

     

    20. 2008

  20. Timo Gerkmann, Colin Breithaupt, Rainer Martin, "Improved A Posteriori Speech Presence Probability Estimation Based on a Likelihood Ratio with Fixed Priors", IEEE Trans. Audio, Speech and Language Processing, Vol. 16, No. 5, pp. 910-919, Jul. 2008.

     

    21. 2007

  21. Colin Breithaupt, Timo Gerkmann, Rainer Martin, "Cepstral Smoothing of Spectral Filter Gains for Speech Enhancement Without Musical Noise", IEEE Signal Processing Letters, Vol. 14, No. 12, pp. 1036-1039, Dec. 2007.

Peer-reviewed Conferences

2016

  1. Robert Rehr, Timo Gerkmann, "A Combination of Pre-Trained Approaches and Generic Methods for an Improved Speech Enhancement", ITG Conference on Speech Communication, Paderborn, Germany, Oct. 2016.
  2. Dörte Fischer, Timo Gerkmann, Simon Doclo and Emanuel A. P. Habets, "Combined Single-Microphone Wiener and MVDR Filtering based on Speech Interframe Correlations and Speech Presence Probability", ITG Conference on Speech Communication, Paderborn, Germany, Oct. 2016.
  3. Christoph Brauer, Timo Gerkmann, Dirk Lorenz, "Sparse Reconstruction of Quantized Speech Signals", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Shanghai, China, Mar. 2016.
  4. Robert Rehr, Timo Gerkmann, "Bias Correction Methods for Adaptive Recursive Smoothing With Applications in Noise PSD Estimation", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Shanghai, China, Mar. 2016.
  5. Benjamin Cauchi, Hamza Javed, Timo Gerkmann, Simon Doclo, Stefan Goetze, Patrick A. Naylor, "Perceptual and Instrumental Evaluation of the Perceived Level of Reverberation", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Shanghai, China, Mar. 2016.
  6. Dörte Fischer, Timo Gerkmann, "Single-Microphone Speech Enhancement Using MVDR Filtering and Wiener Post-Filtering", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Shanghai, China, Mar. 2016.
  7. Benjamin Cauchi, Timo Gerkmann, Simon Doclo, Patrick A. Naylor, Stefan Goetz, "Spectrally and spatially informed noise suppression using beamforming and convolutive NMF", Leuven, Belgium, AES 60th Conference, Feb. 2016.
  8. Naveen Kumar Desiraju, Simon Doclo, Markus Buck, Timo Gerkmann, Tobias Wolff, "On determining optimal reverberation parameters for late residual echo suppression", Leuven, Belgium, AES 60th Conference, Feb. 2016.
  9. Ante Jukic, Toon van Waterschoot, Timo Gerkmann, Simon Doclo, "A general framework for multi-channel speech dereverberation exploiting sparsity", AES 60th Conference, Leuven, Belgium, Feb. 2016.

    2015

  10. Robert Rehr, Timo Gerkmann, "On the Bias of Adaptive First-Order Recursive Smoothing", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, NY, USA, Oct. 2015.
  11. Martin Krawczyk-Becker, Timo Gerkmann, "MMSE-Optimal Combination of Wiener Filtering and Harmonic Model Based Speech Enhancement in a General Framework", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, NY, USA, Oct. 2015.
  12. Ante Jukić, Toon van Waterschoot, Timo Gerkmann, Simon Doclo, "Group sparsity for MIMO speech dereverberation", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, NY, USA, Oct. 2015.
  13. Sidsel Marie Nørholm, Martin Krawczyk-Becker, Timo Gerkmann, Steven van de Par, Jesper Rindom Jensen, Mads Græsbøll Christensen, "Least Squares Estimate of the Initial Phases in STFT based Speech Enhancement", in Interspeech, Dresden, Germany, Sep. 2015.
  14. Benjamin Cauchi, Patrick Naylor, Timo Gerkmann, Simon Doclo, Stefan Goetze, "Late Reverberant Spectral Variance Estimation Using Acoustic Channel Equalization", in European Signal Processing Conference (EUSIPCO), Nice, France, Sep. 2015.
  15. Robert Rehr, Timo Gerkmann, "Cepstral Noise Subtraction for Robust Automatic Speech Recognition", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Brisbane, Australia, Apr. 2015.
  16. Martin Krawczyk-Becker, Dörte Fischer, Timo Gerkmann, "Utilizing Spectro-temporal Correlations for an Improved Speech Presence Probability Based Noise Power Estimation", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Brisbane, Australia, Apr. 2015.
  17. Ante Jukić, Nasser Mohammadiha, Toon van Waterschoot, Timo Gerkmann, Simon Doclo, "Multi-channel Linear Prediction-based Speech Dereverberation with Low-rank Power Spectrogram Approximation", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Brisbane, Australia, Apr. 2015.
  18. Adam Kuklasiński, Simon Doclo, Timo Gerkmann, Søren Holdt Jensen, Jesper Jensen, "Multi-channel PSD Estimators for Speech Dereverberation: A Theoretical and Experimental Comparison", in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Brisbane, Australia, Apr. 2015.

    2014

  19. Tobias May, Timo Gerkmann, "Generalization of supervised learning for binary mask estimation", International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 155-159, Antibes, France, Sep. 2014.
  20. Balazs Fodor, Timo Gerkmann, ”A Posteriori Speech Presence Probability Estimation Based on Averaged Observations and a Super-Gaussian Speech Model”, International Workshop on Acoustic Signal Enhancement (IWAENC), Antibes, France, Sep. 2014.
  21. Stefan Goetze, Anna Warzybok, Ina Kodrasi, Jan Ole Jungmann, Benjamin Cauchi, Jan Rennies, Emanuel Habets, Alfred Mertins, Timo Gerkmann, Simon Doclo, Birger Kollmeier, "A Study on Speech Quality and Speech Intelligibility Measures for Quality Assessment of Single-Channel Dereverberation Algorithms", International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 234-238, Antibes, France, Sep. 2014.
  22. Anna Warzybok, Ina Kodrasi, Jan Ole Jungmann, Emanuel Habets, Timo Gerkmann, Alfred Mertins, Simon Doclo, Birger Kollmeier, Stefan Goetze, "Subjective Speech Quality and Speech Intelligibility Evaluation of Single-Channel Dereverberation Algorithms", International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 333-337, Antibes, France, Sep. 2014.
  23. Steffen Kortlang, Stephan Ewert, Timo Gerkmann, "Single Channel Noise Reduction based on an Auditory Filterbank", International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 284--288, Antibes, France, Sep. 2014.
  24. Ante Jukic, Toon van Waterschoot, Timo Gerkmann, Simon Doclo, "Speech dereverberation with convolutive transfer function approximation using MAP and variational deconvolution approaches", International Workshop on Acoustic Signal Enhancement (IWAENC), pp. 51-55, Antibes, France, Sep. 2014.
  25. Balazs Fodor, Timo Gerkmann, "A Speech Presence Probability Estimator Based on Fixed Priors and a Heavy-Tailed Speech Model", European Signal Processing Conference (EUSIPCO), Lisbon Portugal, Sep. 2014.
  26. Naveen K. Desiraju, Simon Doclo , Timo Gerkmann, Tobias Wolff, "Efficient Multi-Channel Acoustic Echo Cancellation Using Constrained Sparse Filter Updates in the Subband Domain", ITG Fachtagung Sprachkommunikation, Sep. 2014.
  27. Timo Gerkmann, “MMSE-optimal enhancement of complex speech coefficients with uncertain prior knowledge of the clean speech  phase,” in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Florence, Italy, May 2014. [Audio]
  28. Ina Kodrasi, Timo Gerkmann, and Simon Doclo, “Frequency-domain single-channel inverse filtering for speech dereverberation: Theory and practice,” in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Florence, Italy, May 2014.
  29. Robert Rehr, Martin Krawczyk, and Timo Gerkmann, “A posteriori voiced / unvoiced probability estimation based on a sinusoidal model,” in IEEE Int. Conf. Acoust., Speech, Signal Process. (ICASSP), Florence, Italy, May 2014.
  30. Ante Jukic, Toon van Waterschoot, Timo Gerkmann, and Simon Doclo, “Speech dereverberation with multi-channel linear prediction and sparse priors for the desired signal,” in Hands-free Speech Communication and Microphone Arrays (HSCMA), Nancy, France, May 2014.
  31. Benjamin Cauchi, Ina Kodrasi, Robert Rehr, Stephan Gerlach, Ante Jukic, Timo Gerkmann, Simon Doclo, and Stefan Goetze, “Joint dereverberation and noise reduction using beamforming and a single-channel speech enhancement scheme,” in The REVERB challenge, Florence, Italy, May 2014.
  32. Feifei Xiong, Niko Moritz, Robert Rehr, Joern Anemueller, Bernd Meyer, Timo Gerkmann, Simon Doclo, and Stefan Goetze, “Robust ASR in reverberant environments using temporal cepstrum smoothing for speech enhancement and an amplitude modulation filterbank for feature extraction,” in The REVERB challenge, Florence, Italy, May 2014.



    2013


  33. Martin Krawczyk, Robert Rehr, Timo Gerkmann, "Phase-Sensitive Real-Time Capable Speech Enhancement Under Voiced-Unvoiced Uncertainty", European Signal Processing Conference (EUSIPCO), Marrakech, Morocco, Sep 2013, invited paper.
  34. Richard Hendriks, Zeki Erkin, Timo Gerkmann, "Privacy Preserving Distributed Beamforming Based on Homomorphic Encryption", European Signal Processing Conference (EUSIPCO), Marrakech, Morocco, Sep 2013, invited paper.
  35. Niko Moritz, Marc R. Schädler, Kamil Adiloglu, Bernd T. Meyer, Tim Jürgens, Timo Gerkmann, Birger Kollmeier, Simon Doclo, Stefan Goetze, "Noise Robust Distant Automatic Speech Recognition Utilizing NMF Based Source Separation and Auditory Feature Extraction", 2nd Int.  Workshop Machine Listening in Multisource Environments (CHIME), Vancouver, Canada, Jun. 2013.
  36. Ramón Astudillo, Timo Gerkmann, "On the Relation Between Speech Corruption Models in the Spectral and the Cepstral Domain", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Vancouver, Canada, May 2013.
  37. Richard Hendriks, Zekeriya Erkin, Timo Gerkmann, "Privacy-preserving Distributed Speech Enhancement for Wireless Sensor Networks by Processing in the Encrypted Domain", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Vancouver, Canada, May 2013.

    2012


  38. Timo Gerkmann, Martin Krawczyk, Robert Rehr, "Phase estimation in speech enhancement - unimportant, important, or impossible?", IEEE Convention of Electrical and Electronics Engineers in Israel, Eilat, Israel, Nov. 2012.
  39. Martin Krawczyk, Timo Gerkmann, "STFT Phase Improvement for Single Channel Speech Enhancement", Int. Workshop Acoust. Signal Enhancement (IWAENC), Aachen, Germany, Sep. 2012.
  40. Timo Gerkmann, Richard C. Hendriks, "Improved MMSE-Based Noise PSD Tracking Using Temporal Cepstrum Smoothing", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Kyoto, Japan, Mar. 2012. [Audio]

    2011


  41. Jalil Taghia, Timo Gerkmann, Arne Leijon, "Blind Source Separation of Nondisjoint Sources in the Time-Frequency Domain with Model-based Determination of Source Contribution", IEEE International Symposium on Signal Processing and Information Technology, Bilbao, Spain, Dec. 2011.
  42. Nasser Mohammadiha, Timo Gerkmann, Arne Leijon, "A New Approach for Speech Enhancement Based on a Constrained Nonnegative Matrix Factorization", IEEE International Symposium on Intelligent Signal Processing and Communication Systems, Chiangmai, Thailand, Dec. 2011.
  43. Timo Gerkmann, Richard C. Hendriks, "Noise Power Estimation Based on the Probability of Speech Presence", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, NY, USA, Oct. 2011.
    [Code]
  44. Nasser Mohammadiha, Timo Gerkmann, Arne Leijon, "A New Linear MMSE Filter for Single Channel Speech Enhancement Based on Nonnegative Matrix Factorization", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, New Paltz, NY, USA, Oct. 2011.
  45. Gerald Enzner, Martin Krawczyk, Falk-Martin Hoffmann, Michael Weinert, "3D reconstruction of HRTF-fields from 1D continuous measurements", IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, New Paltz, NY, USA, Oct. 2011.
  46. Timo Gerkmann, "Cepstral Weighting for Speech Dereverberation Without Musical Noise", European Signal Processing Conference (EUSIPCO), Barcelona, Spain, Sep. 2011. [Audio]
  47. Richard C. Hendriks, Timo Gerkmann, "Estimation of the Noise Correlation Matrix", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Prague, Czech Republic, May 2011.

    2010


  48. Timo Gerkmann, Rainer Martin, "Cepstral smoothing with reduced computational complexity", ITG-Fachtagung Sprachkommunikation, Bochum, Germany, Oct. 2010
  49. Timo Gerkmann, Rainer Martin, "Empirical Distributions of DFT-Domain Speech Coefficients Based on Estimated Speech Variances", Int. Workshop on Acoustic Echo and Noise Control, Tel Aviv, Israel, Aug. 2010.
  50. Anil Nagathil, Timo Gerkmann, Rainer Martin, "Musical Genre Classification Based on a Highly-resolved Cepstral Modulation Spectrum", European Signal Processing Conference, Aalborg, Denmark, Aug. 2010.
  51. Timo Gerkmann, Martin Krawczyk, Rainer Martin, "Speech presence probability estimation based on temporal cepstrum smoothing", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Dallas, TX, USA, Mar. 2010.

    2009


  52. Timo Gerkmann, Rainer Martin, Derya Dalga, "Multi-Microphone Maximum A Posteriori Fundamental Frequency Estimation in the Cepstral Domain", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Taipei, Taiwan, Apr. 2009.

    2008


  53. Dirk Mauler, Timo Gerkmann, Rainer Martin, "An Analysis of Quefrency Selective Temporal Smoothing of the Cepstrum in Speech Enhancement", Int. Workshop on Acoustic Echo and Noise Control, Seattle, WA, USA, Sep. 2008.
  54. Colin Breithaupt, Timo Gerkmann, Rainer Martin, "A Novel A Priori SNR Estimation Approach Based on Selective Cepstro-Temporal Smoothing", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Las Vegas, NV, USA, Apr. 2008.
  55. Colin Breithaupt, Martin Krawczyk, Rainer Martin, "Parameterized MMSE spectral magnitude estimation for the enhancement of noisy speech", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Las Vegas, NV, USA, Apr. 2008.
  56. Timo Gerkmann, Colin Breithaupt, Rainer Martin, "Bias Compensation for Cepstro-Temporal Smoothing of Spectral Filter Gains", ITG-Fachtagung Sprachkommunikation, Aachen, Germany, Jan. 2008.

    2006


  57. Timo Gerkmann, Rainer Martin, "Soft Decision Combining for Dual Channel Noise Reduction", ISCA Interspeech, Pittsburgh, PA, USA, Sep. 2006.
  58. Justinian Rosca, Timo Gerkmann, Doru-Cristian Balcan, "Statistical Inference of Missing Speech Data in the ICA Domain", IEEE Int. Conf. Acoustics, Speech, Signal Processing, Toulouse, France, May 2006.


Abstracts and others

  1. Benjamin Cauchi, Ina Kodrasi, Robert Rehr, Stephan Gerlach, Ante Jukic, Jan Wellmann, Timo Gerkman, Simon Doclo, Stefan Goetze, "Joint noise reduction and dereverberation for speech enhancement in real-time applications", Real-time demonstration at AES 60th Conference, Leuven, Belgium, Feb. 2016
  2. Rainer Huber, Thomas Bisitz, Timo Gerkmann, Jürgen Kießling, Hartmut Meister, "Comparison of Single-channel Noise Reduction Schemes: Can Hearing Impaired Listeners Tell the Difference?", Int. Hearing Aid Research Conference (IHCON), Aug. 2014.
  3. Robert Rehr, Martin Krawczyk, Timo Gerkmann, "A comparison of state-of-the-art speech fundamental frequency estimators in noisy and reverberant environments", DAGA Jahrestagung für Akustik, Mar. 2014.
  4. Masoumeh Azarpour, Dominic Schmid, Rainer Martin, Timo Gerkmann, "An Evaluation of Binaural Noise and Reverberation Reduction Algorithms", AIA-DAGA Conference on Acoustics, Meran, Italy, Mar. 2013.
  5. Timo Gerkmann, Martin Krawczyk, "Employing the Speech Spectral Phase for an Improved Single Channel Speech Enhancement", Erlanger Kolloquium, Erlangen, Germany, Feb. 2013.
  6. Timo Gerkmann, Martin Krawczyk, Robert Rehr, "Phase Estimation for Single Channel Speech Enhancement: Meaningless, Important, or Impossible?", AUDIS Workshop, Aachen, Germany, Sep. 2012.
  7. Timo Gerkmann, Colin Breithaupt, Dirk Mauler, Martin Krawczyk, Rainer Martin, "Real-time Speech Enhancement Using Temporal Cepstrum Smoothing", ICASSP Show and Tell, Dallas, TX, USA, Mar. 2010.
  8. Timo Gerkmann, Rainer Martin, "On the Statistics of Cepstral Coefficients for Chi-Distributed Spectral Amplitudes", DAGStat, Dortmund, Germany, Mar. 2010.
  9. Timo Gerkmann, Rainer Martin, "Cepstral Smoothing for Speech Enhancement without Musical Noise", Erlanger Kolloquium, Erlangen, Germany, Feb. 2010.
  10. Anil Nagathil, Timo Gerkmann, Rainer Martin, "Cepstral Modulation Features for Classifying Audio Data", 36. Deutsche Jahrestagung für Akustik (DAGA), Berlin, Germany, Mar. 2010.

Patents

  1. Timo Gerkmann and Rainer Martin: "Method for Noise Reduction and Associated Hearing Device", German Patent DE102008031150B3, published Nov. 2009.
  2. Colin Breithaupt, Timo Gerkmann, and Rainer Martin: "Spectral Smoothing Method for Noisy Signals", European Patent EP2158588B1, published Oct. 2010, US Patent US8892431B2, published Nov. 2014.
  3. Timo Gerkmann, Colin Breithaupt, and Rainer Martin: "Method for Bias Compensation for Cepstro-Temporal Smoothing of Spectral Filter Gains", European Patent EP2151820B1, published Oct. 2011, United States Patent US8271271B2, published Sep. 2012.
  4. Timo Gerkmann and Rainer Martin: "Method for Determining Unbiased Signal Amplitude Estimates After Cepstral Variance Modification", United States Patent US8208666B2, published Jun. 2012.
  5. Timo Gerkmann, Rainer Martin, Henning Puder, Wolfgang Sörgel: "Hearing Device and Method for Operating a Hearing Device with Two-stage Transformation", German Patent DE102010026884B4, published Nov. 2013, US Patent US 8948424B2, published Feb. 2015.
(Changed: 19 Dec 2022)  |