Who we are
Head of Audiology
Oticon
Thomas Behrens
Thomas Behrens is Head of Audiology and Director at the Centre for Applied Audiology Research at Oticon. He is responsible for clinical research, professional communication and defining audiology in new products. Prior to this, he spent 10 years at the Oticon Research Centre, Eriksholm. Research interests include among other signal processing, outcome measures, cognitive hearing science, and eHealth. Thomas has a Master Degree in applied signal processing from Aalborg University (1998), and a Bachelor Degree in business administration (HD) from Copenhagen Business School (2004).
Work Area
Thomas shares his experience from other clinical research projects, which Oticon participates in and takes part in designing the special hearing aid settings for BEAR clinical studies.
Resources
Publications
2018 |
Sanchez-Lopez, Raul; Bianchi, Federica; Fereczkowski, Michal; Piechowiak, Tobias; Hau, Ole; Pedersen, Michael Syskind; Behrens, Thomas; Neher, Tobias; Dau, Torsten; Santurette, Sébastien Technical evaluation of hearing-aid fitting parameters for different auditory profiles Conference In Proceedings of Euronoise 2018, Crete, Greece, 27-31 May 2018, pp. 381-388, 2018, ISSN: 2226-5147. @conference{euronoise2018, title = {Technical evaluation of hearing-aid fitting parameters for different auditory profiles}, author = {Raul Sanchez-Lopez and Federica Bianchi and Michal Fereczkowski and Tobias Piechowiak and Ole Hau and Michael Syskind Pedersen and Thomas Behrens and Tobias Neher and Torsten Dau and Sébastien Santurette}, url = {http://www.euronoise2018.eu/component/contentbuilder/details/10/83/euronoise-2018-technical-evaluation-of-hearing-aid-fitting-parameters-for-different-auditory-profiles?Itemid=259}, issn = { 2226-5147}, year = {2018}, date = {2018-05-30}, booktitle = {In Proceedings of Euronoise 2018, Crete, Greece, 27-31 May 2018, pp. 381-388}, abstract = {Hearing-aid users have reported an increased satisfaction since digital technology and advanced signal processing became available in hearing aids. However, many users still experience difficulties in noisy environments and in complex listening scenarios. Although numerous parameters can be adjusted to provide an individualized hearing solution, hearing-aid fitting currently consists of: 1) the gain prescription and adjustment based on the pure-tone audiogram, 2) the activation of advanced features on-demand, such as beamforming and noise reduction. In a previous study [1], a novel approach for auditory profiling was suggested, where the hearing deficits were characterized according to two types of distortion. This allowed the classification of listeners into four auditory profiles according to a high/low degree of hearing distortions along the two dimensions. The aim of the present study was to evaluate different hearing-aid compensation strategies that may fit the needs of different auditory profiles via technical measures. A hearing-aid simulator, consisting of beamforming, noise reduction, and dynamic range compression, was used to test which parameter spaces and outcome measures may be of interest for a “profile-based hearing-aid fitting”. The simulator consists of two dummy behind-the-ear hearing aids and off-line sound processing performed on a personal computer. Technical measures, such as signal-to-noise ratio (SNR) improvement, envelope degradation, and a metric of spectral distortions, were used to evaluate the effects of different signal processing strategies on the signal at the output of the simulator. Several parameter settings were evaluated using speech in the presence of various interferers at different SNRs. Here, the results of this technical evaluation are presented and discussed, with a view towards identifying the effective compensation strategies for different auditory profiles.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Hearing-aid users have reported an increased satisfaction since digital technology and advanced signal processing became available in hearing aids. However, many users still experience difficulties in noisy environments and in complex listening scenarios. Although numerous parameters can be adjusted to provide an individualized hearing solution, hearing-aid fitting currently consists of: 1) the gain prescription and adjustment based on the pure-tone audiogram, 2) the activation of advanced features on-demand, such as beamforming and noise reduction. In a previous study [1], a novel approach for auditory profiling was suggested, where the hearing deficits were characterized according to two types of distortion. This allowed the classification of listeners into four auditory profiles according to a high/low degree of hearing distortions along the two dimensions. The aim of the present study was to evaluate different hearing-aid compensation strategies that may fit the needs of different auditory profiles via technical measures. A hearing-aid simulator, consisting of beamforming, noise reduction, and dynamic range compression, was used to test which parameter spaces and outcome measures may be of interest for a “profile-based hearing-aid fitting”. The simulator consists of two dummy behind-the-ear hearing aids and off-line sound processing performed on a personal computer. Technical measures, such as signal-to-noise ratio (SNR) improvement, envelope degradation, and a metric of spectral distortions, were used to evaluate the effects of different signal processing strategies on the signal at the output of the simulator. Several parameter settings were evaluated using speech in the presence of various interferers at different SNRs. Here, the results of this technical evaluation are presented and discussed, with a view towards identifying the effective compensation strategies for different auditory profiles. |
Other
2018 |
Sanchez-Lopez, Raul; Bianchi, Federica; Fereczkowski, Michal; Piechowiak, Tobias; Hau, Ole; Pedersen, Michael Syskind; Behrens, Thomas; Neher, Tobias; Dau, Torsten; Santurette, Sébastien Technical evaluation of hearing-aid fitting parameters for different auditory profiles Conference Poster presentation at Danish Technical Audiological Society's annual meeting, 5-6 Oct 2018. Hotel Vejlefjord, Stouby, Denmark, 2018. @conference{DTAS2018bb, title = {Technical evaluation of hearing-aid fitting parameters for different auditory profiles}, author = {Raul Sanchez-Lopez and Federica Bianchi and Michal Fereczkowski and Tobias Piechowiak and Ole Hau and Michael Syskind Pedersen and Thomas Behrens and Tobias Neher and Torsten Dau and Sébastien Santurette}, url = {http://www.dtas.dk/DTAS_Program_2018.pdf}, year = {2018}, date = {2018-10-05}, booktitle = {Poster presentation at Danish Technical Audiological Society's annual meeting, 5-6 Oct 2018. Hotel Vejlefjord, Stouby, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
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Rikke Schnack-Petersen
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Michael Gaihede
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Jesper Hvass Schmidt
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Dorte Hammershøi
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Torsten Dau
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