Project A4 - Pinning down the mismatch between acoustics and perception

Project A4 - Pinning down the mismatch between acoustics and perception

Project A4 - Pinning down the mismatch between acoustics and perception

This project aims at understanding and controlling the key factors in acoustic stimulation and simulation techniques relevant for naturally sounding presentation to humans in a way that avoids any mismatch be-tween the intended and the psychoacoustically determined impression of sound quality, loudness, and other attributes.

We consider both free-field equalization of headphones and numerical vibrotactile modelling of earphones coupled to the ear canal as well as the construction and individualization of acoustical “transparent” earpieces. To identify and model the factors involved, a wide range of simulated acoustic environments (partially enhanced with visualization) and ear-level devices will be employed in a multisite round-robin test.

Publications

2024

  • Kersten S, Möhlmann C, Vorländer M (2024) Finite element simulation of the ear canal wall vibrations. Acoustics Week Canada, Montréal, Canada, 3-6 October 2023. In: Canadian Acoustics – Aqoustique canadienne 51 (3), p 116
  • Kersten S, Sgard F, Vorländer M (2024) Impact of the ear canal motion on the impedance boundary conditions in models of the occlusion effect. J. Acoust. Soc. Am. 155 (1): 56–67. DOI: 10.1121/10.0024244
  • Kersten S, Taschke H, Vorländer M (2024) Influence of the cochlear partition’s flexibility on the macro mechanisms in the inner ear. Hearing Research 453: 109127. DOI: 10.1016/j.heares.2024.109127
    Data set available at DOI: 10.5281/zenodo.13897017
  • Lamba L, Ohlmann K, Ewert SD, Kollmeier B (2024) Dummy head HRTFs with different head-above-torso orientations. Proceedings DAGA 2024 Hannover, 18.-21.03.2024, pp 1607-1609. https://pub.dega-akustik.de/DAGA_2024/files/upload/paper/431.pdf
  • Ohlmann K, Kollmeier B, Denk F (2024) Factors affecting sound quality in acoustically Transparent Hearing Devices. Journal of the Audio Engineering Society 71, 16-32. DOI: 10.17743/jaes.2022.0118

2023

2022

2021

  • Biberger T, Schepker H, Denk F, Ewert SD (2021) Instrumental quality predictions and analysis of auditory cues for algorithms in modern headphone technology. Trends Hear 25: 23312165211001219, 1-22. DOI: 10.1177/23312165211001219
  • Denk F, Kohnen M, Llorca-Bofí J, Vorländer M and Kollmeier B (2021) The “missing 6 dB” revisited: influence of room acoustics and binaural parameters on the loudness mismatch between headphones and loudspeakers. Front. Psychol. 12:623670.
    DOI: 10.3389/fpsyg.2021.623670.
    Data sets available at DOI: 10.5281/zenodo.4556707, 10.5281/zenodo.4556669
  • Denk F, Kollmeier B (2021) The Hearpiece database of individual transfer functions of an in-the-earearpiece for hearing device research. Acta Acust 5: 2, 1-16. DOI: 10.1051/aacus/2020028
    The database is available under DOI: 10.5281/zenodo.3733190.
  • Denk F, Ohlmann K, Kollmeier B (2021) Detection mechanisms for processing delays in simulated vented hearing devices. JASA Express Letters, 1(1): 014402. DOI: 10.1121/10.0003064
  • Kersten S, Vorländer M (2021) FEM-Simulation of bone conduction in the human head: influence of geometrical and material parameters. Proceedings DAGA 2021, Wien 15.-18.08.2021, pp 1241-1244. https://pub.dega-akustik.de/DAGA_2021/data/articles/000022.pdf
  • Kohnen M, Denk F, Llorca-Bofí J, Kollmeier B, Vorländer M (2021) Cross-site investigation on head-related and headphone transfer functions: variabilities in relation to loudness balancing. Acta Acustica 5:58. DOI: 10.1051/aacus/2021051
    Preprint available at DOI: 10.5281/zenodo.5068804
    Data sets available at DOI: 10.5281/zenodo.4556707, 10.5281/zenodo.4556669
  • Lamba M, Kersten S, Ewert SD, Vorländer M, Kollmeier B (2021) Comparison of loudness perception mismatch with visual presentation of two anechoic rooms. Proceedings DAGA 2021, Wien 15.-18.08.2021, pp 1237-1240. https://pub.dega-akustik.de/DAGA_2021/data/articles/000162.pdf

2020

  • Schepker H, Denk F, Kollmeier B, Doclo S (2020) Acoustic transparency in hearables - perceptual sound quality evaluations. J Audio Eng Soc 68 (7/8), 495–507. DOI: 10.17743/jaes.2020.0045
  • Denk F, Schepker H, Doclo S, Kollmeier B (2020) Acoustic transparency in hearables - technical evaluation. J Audio Eng Soc 68 (7/8), 508–521. DOI: 10.17743/jaes.2020.0042

2019

  • Denk F, Ewert SD, Kollmeier B (2019) On the limitations of sound localization with hearing devices. J Acoust Soc Am. 146 (3): 1732-1744. DOI: 10.1121/1.5126521
  • Denk F, Lettau M, Schepker H, Doclo S, Roden R, Blau M, Bach JH, Wellmann J, Birger Kollmeier B (2019) A one-size-fits-all earpiece with multiple microphones anddrivers for hearing device research. 2019 AES International Conference on Headphone Technology, August 27.-29,8.2019, San Francisco, CA, US. http://www.aes.org/e-lib/browse.cfm?elib=20523
  • 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? ICA, 9.-13.9.2019, Aachen/Germany. http://pub.dega-akustik.de/ICA2019/data/articles/001254.pdf
  • Schepker H, Denk F, Kollmeier B, Doclo S (2019) Subjective sound quality evaluation of an acoustically transparent hearing device. AES Conference on Headphone Technology, 27-20.08.2019, San Francisco, CA, US. https://api.semanticscholar.org/CorpusID:203656659
  • Schepker H, Denk F, Roden R, Blau M, Kollmeier B, Doclo S (2019) Acoustically transparent sound presentation in hearing devices: Algorithms,devices and models. ICA, 9.-13-9-2019, Aachen/Germany. https://pub.dega-akustik.de/ICA2019/data/articles/001018.pdf

2018

  • Schepker H, Denk F, Kollmeier B, Doclo S (2018) Multi-loudspeaker equalization for acoustic transparency in a custom hearing device. 13th ITG-Symposium Speech Communication, pp 36-40. https://ieeexplore.ieee.org/document/8577990
(Changed: 03 Dec 2024)  | 
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