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Head of division

Prof. Dr. Dr. Birger Kollmeier

+49 (0)441 798 5466 oder 5470

W30 3-313

Office

Katja Warnken

+49 (0)441 798 5470

+49 (0)441 798-3902

W30 3-312

Address (Mail address)

Medizinische Physik, Fakultät VI
Universität Oldenburg
26111 Oldenburg

Location / How to find us

For specific questions regarding one of our research topics, please contact the respective people directly (see staff list).

Florian Denk

Contact

 

Medical Physics Section

Carl von Ossietzky-Universität Oldenburg
D-26111 Oldenburg
Germany

office location: W30-1-104

e-mail: florian.rakn2deqiynk@uol.dvz9cep4w

phone:  +49 441 798-3625

skype: florian.denk92

Research Interests

I am a member of the Medical Physics Group at Carl von Ossietzky University of Oldenburg. After finishing my Bachelor (Engineering Physics, B.Eng, 2014) and Master (Physics, M.Sc. 2016) studies here, I am now pursuing a PhD in the field of hearing systems technology. My main scientific interests are:

  • Hearing Acoustics and Acoustic Design of Hearing Systems
  • Signal Processing for Hearing Devices
  • Psychoacoustics and Perceptive Evaluation
  • Binaural Technology and Spatial Hearing
  • Ear-EEG and multi-sensor integration in hearing aids

 Projects

Databases / Utilities

Publications

Journal papers

Denk, F., Ewert, S.D. Kollmeier, B. (2019)  On the limitations of sound localization with hearing devices. The Journal of the Acoustical Society of America 146(3), p. 1732-1744, DOI: 10.1121/1.5126521

de Taillez, T., Denk, F., Mirkovic, B., Kollmeier, B., Meyer, B.T. (2019)  Modeling Nonlinear Transfer Functions from Speech Envelopes to Encephalography with Neural Networks. International Journal of Psychological Studies 11(4), p. 1-15. DOI:10.5539/ijps.v11n4p1   

Denk, F., Ewert, S.D. Kollmeier, B. (2018)  Spectral directional cues captured by hearing device microphones in individual human ears. The Journal of the Acoustical Society of America 144(4), p. 2072-2087, DOI: 10.1121/1.5056173

Denk, F., Ernst, S.M.A., Ewert, S.D. Kollmeier, B. (2018) Adapting hearing devices to the individual ear acoustics: Database and target response correction functions for various device styles. Trends in Hearing, vol 22, p. 1-19. DOI:10.1177/2331216518779313

Denk, F., Grzybowski, M., Ernst, SMA., Kollmeier, B., Debener, S., Bleichner, M. (2018) Event related potentials measured from in and around the ear electrodes integrated in a live hearing device for monitoring sound perception. Trends in Hearing, vol 22, p.1-14. DOI:10.1177/
2331216518788219

Denk, F., Kollmeier, B., Ewert, SD. (2018) Removing Reflections in Semianechoic Impulse Responses by Frequency-Dependent Truncation, Journal of the Audio Engineering Society 66(3), p.146-153. DOI:10.17743/jaes.2018.0002
Source code and materials of this publication are available here.

Denk, F., Hiipakka, M., Kollmeier, B., Ernst, SMA. (2018) An Individualised Acoustically Transparent Earpiece for Hearing Devices, International Journal of Audiology 57(sup3), p.62-70. DOI: 10.1080/14992027.2017.1294768

For articles published in JASA: Copyright Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The articles above appeared in the Journal of the Acoustical Society of America and may be found at the hyperlinks behind the DOIs.

Conference contributions (Peer-Reviewed)

Denk, F.,Lettau, M., Schepker, H., Doclo, S.,Roden, R. Blau, M.,Bach, J.-H., Wellmann, J., Kollmeier, B. (2019) A one-size-fits-all earpiece with multiple microphones and drivers for hearing device research, in Proc. AES Conference on Headphone Technology, San Francisco, USA.

Schepker, H., Denk, F., Kollmeier, B., Doclo, S. (2019) Subjective sound quality evaluation of an acoustically transparent hearing device, in Proc. AES Conference on Headphone Technology, San Francisco, USA, Aug. 2019.

Kohnen, M., Denk, F., Llorca Bofi, J., Vorländer, M., Kollmeier, B. (2019) Loudness in different rooms versus headphone reproduction: Is there a mismatch even after careful equalization? Proc. International Congress on Acoustics ICA, Aachen, Germany, p. 7879-7886

Denk, F., Schepker, H., Doclo, S., Kollmeier, B. (2018) Equalization filter design for achieving acoustic transparency in a semi-open fit hearing device. Proceedings 13. ITG Conference on Speech Communication, Oldenburg, Germany, Oct 2018, p. 226-230

Schepker, H., Denk, F., Kollmeier, B., Doclo, S. (2018) Multi-loudspeaker equalization for acoustic transparency in a custom hearing device. Proceedings 13. ITG Conference on Speech Communication, Oldenburg, Germany, Oct 2018, p. 31-35

Denk, F., Grzybowski, M., Ernst, SMA., Kollmeier, B., Debener, S., Bleichner, M. (2018). Measuring hearing instrument sound modification using integrated ear-EEG. Proceedings of the International Symposium on Auditory and Audiological Research ISAAR, Nyborg, Denmark, v. 6, p. 351-358

Denk, F., Vogl, S., Schepker, H., Kollmeier, B., Blau, M., Doclo, S. (2017). The Acoustically Transparent Hearing Device: Towards Integration of Individualized Sound Equalization, Electro-Acoustic Modeling and Feedback Cancellation. Challenges in Hearing Assistive Technology (CHAT), 1st International Workshop on, Stockholm, Sweden, p. 89-94

Denk, F., Kollmeier, B., Ernst, SMA. (2016). High-Fidelity Hearing Instruments: Evaluating Listening Quality of a new Prototype using a Method for Evaluating Modified Listening (MEML). Audio Engineering Society Conference on Headphone Technology, Aalborg, p. 206-213

Denk, F., da Costa, JPCL., & Silveira, MA. (2014). Enhanced forensic multiple speaker recognition in the presence of coloured noise. In Signal Processing and Communication Systems (ICSPCS), 2014 8th International Conference on (pp. 1-7). IEEE.

Conference Contributions (Others)

Denk, F., Ewert, S.D., Kollmeier, B. (2019) Limitations on sound localization with linear hearing devices. International Symposium on Auditory and Audiological Research (ISAAR), Nyborg, Denmark.

Schepker, H., Denk, F., Roden, R., Blau, M., Kollmeier, B., Doclo, S. (2019) Acoustically transparent sound presentation in hearing devices: algorithms, devices and models, International Congress on Acoustics ICA, Aachen, Germany

Roden, R., Wulbusch, N., Denk, F., Schepker, H., Chernov, A., Doclo, S., Blau, M (2019) Optimization of vented earpiece designs using the finite element method, International Congress on Acoustics ICA, Aachen, Germany

Denk, F., Kohnen, M., Llorca Bofi, J., Vorländer, M., Kollmeier, B. (2019) Audiology with two ears: Does binaural hearing influence the loudness mismatch between free-field and headphone presentation, European Society of Audiological Societies Congress EFAS, Lisbon, Portugal

Denk, F., Brinkmann, F., Stirnemann, A., Kollmeier, B. (2019) The PIRATE: an anthropometric earPlug with
exchangeable microphones for Individual Reliable Acquisition of Transfer functions at the Ear canal entrance
, DAGA 2019, Rostock, 45. Jahrestagung für Akustik

Denk, F., Ewert, S., Kollmeier, B. (2019) Sound localization using hearing device HRTFs, DAGA 2019, Rostock, 45. Jahrestagung für Akustik

Roden, R., Wulbusch, N., Chernov, A., Denk, F., Blau, M. (2019) Choosing the optimal position of a vent microphone in acoustically open hearing systems – a numerical study, DAGA 2019, Rostock, 45. Jahrestagung für Akustik

Schädler, M., Buhl, M., Denk, F. (2019) An almost commodity hardware based mobile prototype of a hearing aid featuring the openMHA algorithm research software platform, DAGA 2019, Rostock, 45. Jahrestagung für Akustik

Buhl, M., Denk, F., Bodenstein, M., Wiedemann, N, Jacobsen, S., Schädler, M., Kollmeier, B. (2019) Calibration of a mobile hearing aid prototype and its validation: Towards transparent listening with commodity hardware, DAGA 2019, Rostock, 45. Jahrestagung für Akustik

Denk, F. (2018) An acoustically transparent hearing system. The 63rd International Congress of Hearing Aid Acousticians of the EuHA, Hannover, Germany, Oct 2018

Denk, F.,Ewert, SD., Kollmeier B. (2018) Can we trust our aided ears? - Acoustic directional information available in different hearing device styles. International Hearing Aid Research Conference IHCON, Tahoe City, USA, Aug. 2018

Kollmeier, B., Denk, F., Schädler, M.R. (2018) Accessible infrastructure for hearing research: An almost commodity hardware based mobile prototype of a hearing aid featuring the openMHA.org algorithm research software platform. International Hearing Aid Research Conference IHCON, Tahoe City, USA, Aug. 2018

Bodenstein, M., Denk, F., Kollmeier, B., Schädler, M.R., (2018) An almost commodity hardware based mobile prototype of a hearing aid featuring the openMHA.org algorithm research software platform, DAGA 2018, Munich, 44. Jahrestagung für Akustik

Denk, F., Ernst, SMA., Heeren, J., Ewert, SD., Kollmeier B. (2018) Database of individual HRTFs measured at the eardrum and multiple hearing device microphone locations, DAGA 2018, Munich, 44. Jahrestagung für Akustik

Denk, F., Ernst, SMA., Ewert, SD., Kollmeier B. (2018) Adapting hearing devices to the individual ear acoustics: Database and target response correction functions for various device style, Erlanger Kolloquium 2018, Erlangen

Denk, F., Heeren, J., Ewert, S., Kollmeier, B., Ernst, SMA. (2017). Controlling the Head Position during individual HRTF Measurements and its Effect on Accuracy, DAGA 2017, Kiel, 43. Jahrestagung für Akustik

Denk F., Haverkamp L., Kollmeier B., Ernst SMA. (2017). Evaluation of a High-Fidelity Hearing Device Prototype using Real-Ear Measurement, DGA 2017, Aalen, Jahrestagung der Deutschen Gesellschaft für Audiologie

Denk, F., Ernst, SMA, Grzybowski, M., Haverkamp, L., Hohmann, V., Kollmeier, B.. (2016). The Individualized Acoustically Transparent Earpiece - 'HiFi' Hearing Instrument Prototype and Research Platform, The Future of Hearing, Hearing4All international Symposium, Oldenburg

Denk, F., Hiipakka, M., Kollmeier, B., Ernst, SMA. (2014). Evaluation of individualized binaural earpiece for hearing-aid applications, BSA 2014, British Society of Audiology annual meeting, Keele (UK)

Patents

Verfahren zum betreiben eines elektroakustischen systems und ein elektroakustisches system.
WO 2016150947 A1, DE 102015003855 A1, Denk, F., Ernst, SMA., Hiipakka, M., Kollmeier, B.

See also: Medi-Publications

Popular Science

Denk, F., Kollmeier, B. (2019) Vom Ohr und seiner Akustik: Grundlagen für akustisch transparente Hörsysteme, Hörprofil 2019(1), p. 18-21 (in German)

Bleichner M. G., Grzybowski M., Ernst S. M. A., Kollmeier B., Debener S., Denk F. (2018) Listening to the Brain with Hearing Devices, BrainInsight, the IEEE Brain Initiative eNewsletter 2018(4)

Swain, F. (2018) Hearing aid listens in to your thoughts, New Scientist, 2018 May, based on this original Publication

Teaching

  • Tutor of Signalverarbeitung (Bachelor course), 2014-2018
  • Advising Tutor, Blockpraktikum Psychophysik, Neurosensorik und auditorische Signalverarbeiung (2018)
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