Silje Grini Nielsen – Hvem vi er

@conference{isaar2019mw,
title = {Evaluation of six hearing-aid processing strategies from the perspective of auditory profiling: Insights from the BEAR project},
author = {Mengfan Wu and Raul Sanchez-Lopez and Mouhamad El-Haj-Ali and Silje Grini Nielsen and Michal Fereczkowski and Torsten Dau and Sebastién Santurette and Tobias Neher},
url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/700958/},
year = {2019},
date = {2019-08-21},
booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems},
number = {SP.77},
organization = {The Danavox Jubilee Foundation},
abstract = {The current study forms part of the Better hEAring Rehabilitation (BEAR) project, which aims at developing new clinical tools for characterizing individual hearing loss and for assessing hearing-aid (HA) benefit. Its purpose was to evaluate the interaction between four auditory profiles and three measures of HA outcome obtained for six HA processing strategies. Measurements were carried out in a realistic noise environment at signal-to-noise ratios that were set based on individual speech reception thresholds ('test SNRs'). Speech recognition scores and ratings of overall quality and noise annoyance were collected in two spatial conditions. The stimuli were generated with the help of a HA simulator and presented via headphones to 60 older habitual HA users who had previously been profiled based on a data-driven approach (Sanchez-Lopez et al., Trends in Hearing 2018). The four auditory profiles differed significantly in terms of the test SNRs and interacted significantly with the HA processing strategies for speech recognition in one spatial condition. Moreover, the correlations between the speech recognition scores and subjective ratings differed among the auditory profiles. However, the HA processing strategies leading to the best outcomes were similar across the four auditory profiles.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}

@conference{EFAS2019MW,
title = {Hearing aid processing strategies for listeners with different auditory profiles: Insights from the BEAR project},
author = {Mengfan Wu and Raul Sanchez-Lopez and Mouhamad El-Haj-Ali and Silje Grini Nielsen and Michal Fereczkowski and Federica Bianchi and Torsten Dau and Sebastién Santurette and Tobias Neher},
url = {https://fff0e2ea-6f01-41b9-b0dd-7dbdf3580dbb.filesusr.com/ugd/09d8d3_dc3fb64898554097a7427d3d03a1f290.pdf},
year = {2019},
date = {2019-05-22},
booktitle = {Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019},
number = {03875},
organization = {European Federation of Audiology Societies},
abstract = {Background, The Better hEAring Rehabilitation (BEAR) project pursues the development and evaluation of new, clinically feasible strategies for individual hearing loss diagnosis and hearing aid (HA) fitting. Two essential elements of this research are the design of a new diagnostic test battery for identifying different auditory profiles and linking those profiles to different HA processing strategies. The current study focused on establishing links between four auditory profiles and the benefit from six HA processing strategies.

Material and methods, Sixty older individuals with bilateral mild-to-severe sensorineural hearing losses from a clinical population of HA users participated. Speech-in-noise stimuli were generated with the help of a HA simulator that included directional processing, noise reduction and dynamic range compression. Stimulus presentation was via headphones. Six HA settings differing in terms of signal-to-noise ratio (SNR) improvement and temporal and spectral speech distortions were selected for testing based on a comprehensive technical evaluation of different HA parameter settings. Speech-in-noise perception was assessed at fixed SNRs that were chosen based on individual speech reception threshold measurements. In addition, overall preference and noise annoyance were assessed using a multiple stimulus comparison paradigm.

Results, We hypothesize that the perceptual outcomes from the six HA settings will differ across the different auditory profiles. More specifically, we expect listeners showing high sensitivity to temporal and spectral signal changes to perform best with and/or to prefer HA settings that preserve those cues. In contrast, we expect listeners showing low sensitivity to temporal and spectral signal changes to perform best with settings that maximize SNR improvement, independent of any additional signal distortions.

Conclusions, We anticipate that the findings from the current study will provide the basis for the implementation of more individualized HA fitting strategies to be tested subsequently in wearable HAs.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}

@conference{EFAS2019RSL,
title = {Auditory profiling as a tool for characterizing individual hearing deficits: Data-driven analysis of the results of the BEAR Test Battery},
author = {Raul Sanchez-Lopez and Silje Grini Nielsen and Mouhamad Ej-Haj-Ali and Oscar Cañete and Mengfan Wu and Michal Fereczkowski and Federica Bianchi and Tobias Neher and Torsten Dau and Sebastién Santurette},
url = {https://fff0e2ea-6f01-41b9-b0dd-7dbdf3580dbb.filesusr.com/ugd/09d8d3_dc3fb64898554097a7427d3d03a1f290.pdf},
year = {2019},
date = {2019-05-22},
booktitle = {Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019},
number = {03921},
organization = {European Federation of Audiology Societies},
abstract = {Background: One aim of the Better hEAring Rehabilitation (BEAR) project is to define a new clinical profiling tool, a test-battery, for individualized hearing loss characterization. Whereas the loss of sensitivity can be efficiently assessed by pure-tone audiometry, it still remains a challenge to address supra-threshold hearing deficits using appropriate clinical diagnostic tools. In contrast to the classical attenuation-distortion model, the proposed BEAR approach is based on the hypothesis that any listener’s hearing can be characterized along two dimensions reflecting largely independent types of perceptual distortions. Recently, a data-driven approach (Sanchez-Lopez et al., 2018) provided evidence consistent with the existence of two independent sources of distortion, and thus different auditory profiles.

Method: Based on considerations of feasibility, time efficiency and evidence from literature, 11 tests were selected for the clinical test battery. The proposed tests were divided into six categories: audibility, middle-ear analysis, speech perception, binaural-processing abilities, loudness perception, and spectro-temporal resolution. Fifty-seven listeners with symmetric, mild-to-severe sensorineural hearing loss were selected from a clinical population of hearing-aid users who completed all tests included in the battery. The participants were tested in a clinical environment and did not receive systematic training for any of the tasks.

Results: The analysis of the preliminary results will focus on the ability of each test to pinpoint individual differences among the participants, relationships among the different tests, and determining their potential use in clinical settings. Importantly, a parallel study will evaluate the extent to which the outcomes of these tests can be used for hearing-aid fitting.

Conclusion: Based on the results of a data-driven analysis for auditory profiling, the test battery will be refined and implemented as a clinical profiling tool in audiology clinics.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}