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@PHDTHESIS{Pausch:844220,
      author       = {Pausch, Florian},
      othercontributors = {Fels, Janina and van Wieringen, Astrid},
      title        = {{S}patial audio reproduction for hearing aid research :
                      {S}ystem design, evaluation and application},
      volume       = {36},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Berlin},
      publisher    = {Logos Verlag GmbH},
      reportid     = {RWTH-2022-03745},
      isbn         = {978-3-8325-5461-3},
      series       = {Aachener Beiträge zur Akustik},
      pages        = {1 Online-Ressource : Illustrationen, Diagramme},
      year         = {2022},
      note         = {Druckausgabe: 2022. - Auch veröffentlicht auf dem
                      Publikationsserver der RWTH Aachen University; Dissertation,
                      RWTH Aachen University, 2021},
      abstract     = {Hearing loss (HL) has multifaceted negative consequences
                      for individuals of all age groups. Despite individual
                      fitting based on clinical assessment, consequent usage of
                      hearing aids (HAs) as a remedy is often discouraged due to
                      unsatisfactory HA performance. Consequently, the
                      methodological complexity in the development of HA
                      algorithms has been increased by employing virtual acoustic
                      environments which enable the simulation of indoor scenarios
                      with plausible room acoustics. Inspired by the research
                      question of how to make such environments accessible to HA
                      users while maintaining complete signal control, a novel
                      concept addressing combined perception via HAs and residual
                      hearing is proposed. The specific system implementations
                      employ a master HA and research HAs for aided signal
                      provision, and loudspeaker-based spatial audio methods for
                      external sound field reproduction. Systematic objective
                      evaluations led to recommendations of configurations for
                      reliable system operation, accounting for perceptual
                      aspects. The results from perceptual evaluations involving
                      adults with normal hearing revealed that the characteristics
                      of the used research HAs primarily affect sound localisation
                      performance, while allowing comparable egocentric auditory
                      distance estimates as observed when using loudspeaker-based
                      reproduction. To demonstrate the applicability of the
                      system, school-age children with HL fitted with research HAs
                      were tested for speech-in-noise perception in a virtual
                      classroom and achieved comparable speech reception
                      thresholds as a comparison group using commercial HAs, which
                      supports the validity of the HA simulation. The inability to
                      perform spatial unmasking of speech compared to their peers
                      with normal hearing implies that reverberation times of 0.4
                      s already have extensive disruptive effects on spatial
                      processing in children with HL. Collectively, the results
                      from evaluation and application indicate that the proposed
                      systems satisfy core criteria towards their use in HA
                      research.},
      cin          = {613610},
      ddc          = {621.3},
      cid          = {$I:(DE-82)613610_20201204$},
      pnm          = {ICARE - Improving Children's Auditory Rehabilitation
                      (607139)},
      pid          = {G:(EU-Grant)607139},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      doi          = {10.18154/RWTH-2022-03745},
      url          = {https://publications.rwth-aachen.de/record/844220},
}