Work areas
The project has eight work areas to start up consecutively. The first three areas are active from project start and includes studies of existing practice and pilot tests of new methods. The next two areas start slightly later and will test and evaluate new strategies. The following two areas will revise the most promising new methods for clinical practice and assess the potential for user-controlled rehabilitation. Finally, one work area is to transfer relevant results to new guidelines and standards.
Populations with low benefit
Every now and then, there are patients in the audiological clinics, which have little or no benefit at all from hearing aid treatment. They experience hearing problems, but none that indicates that a hearing aid may alleviate the situation. For these patients there may be very little to offer, but it is possible that we will learn more about the hearing and the complexity of hearing problems by further studying these cases.
People
Professor
Aalborg University
Aalborg University
PhD student
Aalborg University
Aalborg University
Associate Professor
University of Southern Denmark
University of Southern Denmark
Post Doc
University of Southern Denmark
University of Southern Denmark
Resources
Publications
2024 |
Fereczkowski, Michal; Sanchez-Lopez, Raul H; Christiansen, Stine; Neher, Tobias Amplitude Compression for Preventing Rollover at Above-Conversational Speech Levels Journal Article Trends in Hearing, 28 , 2024. @article{Michal2024, title = {Amplitude Compression for Preventing Rollover at Above-Conversational Speech Levels}, author = {Michal Fereczkowski and Raul H Sanchez-Lopez and Stine Christiansen and Tobias Neher}, doi = {10.1177/23312165231224597}, year = {2024}, date = {2024-01-08}, journal = {Trends in Hearing}, volume = {28}, abstract = {Hearing aids provide nonlinear amplification to improve speech audibility and loudness perception. While more audibility typically increases speech intelligibility at low levels, the same is not true for above-conversational levels, where decreases in intelligibility (“rollover”) can occur. In a previous study, we found rollover in speech intelligibility measurements made in quiet for 35 out of 74 test ears with a hearing loss. Furthermore, we found rollover occurrence in quiet to be associated with poorer speech intelligibility in noise as measured with linear amplification. Here, we retested 16 participants with rollover with three amplitude-compression settings. Two were designed to prevent rollover by applying slow- or fast-acting compression with a 5:1 compression ratio around the “sweet spot,” that is, the area in an individual performance-intensity function with high intelligibility and listening comfort. The third, reference setting used gains and compression ratios prescribed by the “National Acoustic Laboratories Non-Linear 1” rule. Speech intelligibility was assessed in quiet and in noise. Pairwise preference judgments were also collected. For speech levels of 70 dB SPL and above, slow-acting sweet-spot compression gave better intelligibility in quiet and noise than the reference setting. Additionally, the participants clearly preferred slow-acting sweet-spot compression over the other settings. At lower levels, the three settings gave comparable speech intelligibility, and the participants preferred the reference setting over both sweet-spot settings. Overall, these results suggest that, for listeners with rollover, slow-acting sweet-spot compression is beneficial at 70 dB SPL and above, while at lower levels clinically established gain targets are more suited.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Hearing aids provide nonlinear amplification to improve speech audibility and loudness perception. While more audibility typically increases speech intelligibility at low levels, the same is not true for above-conversational levels, where decreases in intelligibility (“rollover”) can occur. In a previous study, we found rollover in speech intelligibility measurements made in quiet for 35 out of 74 test ears with a hearing loss. Furthermore, we found rollover occurrence in quiet to be associated with poorer speech intelligibility in noise as measured with linear amplification. Here, we retested 16 participants with rollover with three amplitude-compression settings. Two were designed to prevent rollover by applying slow- or fast-acting compression with a 5:1 compression ratio around the “sweet spot,” that is, the area in an individual performance-intensity function with high intelligibility and listening comfort. The third, reference setting used gains and compression ratios prescribed by the “National Acoustic Laboratories Non-Linear 1” rule. Speech intelligibility was assessed in quiet and in noise. Pairwise preference judgments were also collected. For speech levels of 70 dB SPL and above, slow-acting sweet-spot compression gave better intelligibility in quiet and noise than the reference setting. Additionally, the participants clearly preferred slow-acting sweet-spot compression over the other settings. At lower levels, the three settings gave comparable speech intelligibility, and the participants preferred the reference setting over both sweet-spot settings. Overall, these results suggest that, for listeners with rollover, slow-acting sweet-spot compression is beneficial at 70 dB SPL and above, while at lower levels clinically established gain targets are more suited. |
2023 |
Narayanan, Sreeram Kaithali; Rye, Palle; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Hammershøi, Dorte Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes Journal Article International Journal of Audiology, pp. 1-8, 2023. @article{SKN_SII, title = {Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes}, author = {Sreeram Kaithali Narayanan and Palle Rye and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Dorte Hammershøi}, doi = {10.1080/14992027.2023.2291633}, year = {2023}, date = {2023-12-19}, journal = {International Journal of Audiology}, pages = {1-8}, abstract = {Objective The speech intelligibility index (SII) is used to quantify the audibility of the speech. This study examined the relationship between self-reported hearing aid (HA) outcomes and the difference in aided SII (SIIA) calculated from the initial fit (IF) gain and that prescribed as per the second generation of National Acoustic Laboratory Non-Linear (NAL-NL2). Design A prospective observational study. Study sample The study included 718 first-time and 253 experienced HA users. All users had a valid real-ear measurement (REM) at three input levels (55, 65 and 80 dB SPL). Results The gain provided by IF was lower than NAL-NL2 at 55 and 65 dB SPL. IF gain exhibited reduced compression than NAL-NL2 as input levels increased from 55 to 80 dB SPL. On average, the SIIA provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SIIA between IF and NAL-NL2 at 80 dB SPL input level with 0 dB signal-to-noise ratio (SNR) turned out to be a predictor for self-reported outcome for first-time HA users. Conclusion The study suggests that an SIIA close to that provided by NAL-NL2 at high input levels would be preferred to obtain a better self-reported outcome. }, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective The speech intelligibility index (SII) is used to quantify the audibility of the speech. This study examined the relationship between self-reported hearing aid (HA) outcomes and the difference in aided SII (SIIA) calculated from the initial fit (IF) gain and that prescribed as per the second generation of National Acoustic Laboratory Non-Linear (NAL-NL2). Design A prospective observational study. Study sample The study included 718 first-time and 253 experienced HA users. All users had a valid real-ear measurement (REM) at three input levels (55, 65 and 80 dB SPL). Results The gain provided by IF was lower than NAL-NL2 at 55 and 65 dB SPL. IF gain exhibited reduced compression than NAL-NL2 as input levels increased from 55 to 80 dB SPL. On average, the SIIA provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SIIA between IF and NAL-NL2 at 80 dB SPL input level with 0 dB signal-to-noise ratio (SNR) turned out to be a predictor for self-reported outcome for first-time HA users. Conclusion The study suggests that an SIIA close to that provided by NAL-NL2 at high input levels would be preferred to obtain a better self-reported outcome. |
Houmøller, Sabina Storbjerg; Tsai, Li-Tang; Wolff, Anne; Narayanan, Sreeram Kaithali; Hougaard, Dan Dupont; Gaihede, Michael; Hammershøi, Dorte; Godballe, Christian; Schmidt, Jesper Hvass A history of occupational noise exposure is associated with steep-slope audiograms and poorer self-reported hearing-aid outcomes Journal Article International Journal of Audiology, 2023. @article{sabina_noise, title = {A history of occupational noise exposure is associated with steep-slope audiograms and poorer self-reported hearing-aid outcomes}, author = {Sabina Storbjerg Houmøller and Li-Tang Tsai and Anne Wolff and Sreeram Kaithali Narayanan and Dan Dupont Hougaard and Michael Gaihede and Dorte Hammershøi and Christian Godballe and Jesper Hvass Schmidt}, url = {https://doi.org/10.1080/14992027.2023.2272558}, doi = {10.1080/14992027.2023.2272558}, year = {2023}, date = {2023-11-01}, journal = {International Journal of Audiology}, abstract = {Objective To investigate the effects of previous occupational noise exposure in older adults with hearing loss on (1) audiometric configuration and acoustic reflex (AR) thresholds and (2) self-reported hearing abilities and hearing aid (HA) effectiveness. Design A prospective observational study. Study sample The study included 1176 adults (≥60 years) with bilateral sensorineural hearing loss. Pure-tone audiometry, AR thresholds, and responses to the abbreviated version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire were obtained, along with information about previous occupational noise exposure. Results Greater occupational noise exposure was associated with a higher prevalence of steeply sloping audiograms in men and women and a 0.32 (95% CI: −0.57; −0.06) scale points lower mean SSQ12 total score among noise-exposed men. AR thresholds did not show a significant relation to noise-exposure status, but hearing thresholds at a given frequency were related to elevated AR thresholds at the same frequency. Conclusions A noise exposure history is linked to steeper audiograms in older adults with hearing loss as well as to poorer self-reported hearing abilities in noise-exposed men. More attention to older adults with previous noise exposure is warranted in hearing rehabilitation.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective To investigate the effects of previous occupational noise exposure in older adults with hearing loss on (1) audiometric configuration and acoustic reflex (AR) thresholds and (2) self-reported hearing abilities and hearing aid (HA) effectiveness. Design A prospective observational study. Study sample The study included 1176 adults (≥60 years) with bilateral sensorineural hearing loss. Pure-tone audiometry, AR thresholds, and responses to the abbreviated version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire were obtained, along with information about previous occupational noise exposure. Results Greater occupational noise exposure was associated with a higher prevalence of steeply sloping audiograms in men and women and a 0.32 (95% CI: −0.57; −0.06) scale points lower mean SSQ12 total score among noise-exposed men. AR thresholds did not show a significant relation to noise-exposure status, but hearing thresholds at a given frequency were related to elevated AR thresholds at the same frequency. Conclusions A noise exposure history is linked to steeper audiograms in older adults with hearing loss as well as to poorer self-reported hearing abilities in noise-exposed men. More attention to older adults with previous noise exposure is warranted in hearing rehabilitation. |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Adapting to New Hearing Aids and Hearing Aid Adjustments in Adult Danish Users Journal Article American Journal of Audiology, 32 (3), pp. 526-542, 2023. @article{skn_aja, title = {Adapting to New Hearing Aids and Hearing Aid Adjustments in Adult Danish Users}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.1044/2023_AJA-23-00030}, doi = {10.1044/2023_AJA-23-00030}, year = {2023}, date = {2023-07-14}, journal = {American Journal of Audiology}, volume = {32}, number = {3}, pages = {526-542}, abstract = {Purpose: This study was aimed at understanding the effect of time taken to adapt to the new hearing aids (HAs) and the timeline of HA adjustments performed over more than a year of rehabilitation on self-reported HA outcomes. Method: A self-report of the time it took to get accustomed to the new HAs and adjustment of the HAs during a year of rehabilitation collected from 690 HA users using a nonstandardized questionnaire were analyzed. The abbreviated version of the Speech, Spatial, and Quality of Hearing questionnaire and the International Outcome Inventory for Hearing Aids were used as the self-reported HA outcome. Result: Out of 690 participants, 442 (64%) got accustomed to HAs within 2 months. Ninety-one participants (13%) did not get accustomed to the HAs at all, out of which 74 (81%) were first-time HA users. Eighty-four participants (12%) did not receive any HA adjustments after their initial fitting, and 49 (7%) had their HAs adjusted four or more times during the 1 year of rehabilitation. Three hundred ninety (57%) participants got their HA adjusted only at the 2-month follow-up visit, showing the intent to adjust given an opportunity. The stepwise multiple linear regression results showed the significant impact of getting accustomed to the HA and having HA adjusted at multiple instances on the self-reported HA outcomes. Conclusion: This study showed the importance of getting accustomed to the HA and having a minimal number of adjustments to have a better long-term self-reported HA outcome.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Purpose: This study was aimed at understanding the effect of time taken to adapt to the new hearing aids (HAs) and the timeline of HA adjustments performed over more than a year of rehabilitation on self-reported HA outcomes. Method: A self-report of the time it took to get accustomed to the new HAs and adjustment of the HAs during a year of rehabilitation collected from 690 HA users using a nonstandardized questionnaire were analyzed. The abbreviated version of the Speech, Spatial, and Quality of Hearing questionnaire and the International Outcome Inventory for Hearing Aids were used as the self-reported HA outcome. Result: Out of 690 participants, 442 (64%) got accustomed to HAs within 2 months. Ninety-one participants (13%) did not get accustomed to the HAs at all, out of which 74 (81%) were first-time HA users. Eighty-four participants (12%) did not receive any HA adjustments after their initial fitting, and 49 (7%) had their HAs adjusted four or more times during the 1 year of rehabilitation. Three hundred ninety (57%) participants got their HA adjusted only at the 2-month follow-up visit, showing the intent to adjust given an opportunity. The stepwise multiple linear regression results showed the significant impact of getting accustomed to the HA and having HA adjusted at multiple instances on the self-reported HA outcomes. Conclusion: This study showed the importance of getting accustomed to the HA and having a minimal number of adjustments to have a better long-term self-reported HA outcome. |
Fereczkowski, Michal; Neher, Tobias Semantic Context Can Mask Intelligibility Declines at Above-Conversational Speech Levels in Normal-Hearing Listeners Journal Article Journal of Speech, Language, and Hearing Research, pp. 1,7, 2023. @article{MF_JSLHR, title = {Semantic Context Can Mask Intelligibility Declines at Above-Conversational Speech Levels in Normal-Hearing Listeners}, author = {Michal Fereczkowski and Tobias Neher}, doi = {10.1044/2023_JSLHR-22-00506}, year = {2023}, date = {2023-05-17}, journal = {Journal of Speech, Language, and Hearing Research}, pages = {1,7}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Lund, Katja; Möller, Sören; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Self-Reported Hearing-Aid Use Patterns in an Adult Danish Population Journal Article Audiological Research, 13 (2), pp. 221-235, 2023. @article{AR2023SKN, title = {Self-Reported Hearing-Aid Use Patterns in an Adult Danish Population}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Katja Lund and Sören Möller and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.3390/audiolres13020021}, doi = {10.3390/audiolres13020021}, year = {2023}, date = {2023-03-27}, journal = {Audiological Research}, volume = {13}, number = {2}, pages = {221-235}, abstract = {The retrospective reporting of users’ hearing aid (HA) usage can provide insight into individualized HA usage patterns. Understanding these HA usage patterns can help to provide a tailored solution to meet the usage needs of HA users. This study aims to understand the HA usage pattern in daily-life situations from self-reported data and to examine its relationship to self-reported outcomes. A total of 1537 participants who responded to questions related to situations where they always took off or put on the HAs were included in the study. A latent class analysis was performed to stratify the HA users according to their HA usage pattern. The results showed distinct usage patterns in the latent classes derived for both scenarios. The demographics, socio-economic indicators, hearing loss, and user-related factors were found to impact HA usage. The results showed that the HA users who reported using the HAs all the time (regular users) had better self-reported HA outcomes than situational users, situational non-users, and non-users. The study explained the underlying distinct HA usage pattern from self-reported questionnaires using latent class analysis. The results emphasized the importance of regular use of HAs for a better self-reported HA outcome}, keywords = {}, pubstate = {published}, tppubtype = {article} } The retrospective reporting of users’ hearing aid (HA) usage can provide insight into individualized HA usage patterns. Understanding these HA usage patterns can help to provide a tailored solution to meet the usage needs of HA users. This study aims to understand the HA usage pattern in daily-life situations from self-reported data and to examine its relationship to self-reported outcomes. A total of 1537 participants who responded to questions related to situations where they always took off or put on the HAs were included in the study. A latent class analysis was performed to stratify the HA users according to their HA usage pattern. The results showed distinct usage patterns in the latent classes derived for both scenarios. The demographics, socio-economic indicators, hearing loss, and user-related factors were found to impact HA usage. The results showed that the HA users who reported using the HAs all the time (regular users) had better self-reported HA outcomes than situational users, situational non-users, and non-users. The study explained the underlying distinct HA usage pattern from self-reported questionnaires using latent class analysis. The results emphasized the importance of regular use of HAs for a better self-reported HA outcome |
2022 |
Fereczkowski, Michal; Neher, Tobias Predicting Aided Outcome With Aided Word Recognition Scores Measured With Linear Amplification at Above-conversational Levels Journal Article Ear and Hearing, 44 (1), pp. 155-166, 2022. @article{michal_EaH2022, title = {Predicting Aided Outcome With Aided Word Recognition Scores Measured With Linear Amplification at Above-conversational Levels}, author = {Michal Fereczkowski and Tobias Neher}, doi = {10.1097/AUD.0000000000001263}, year = {2022}, date = {2022-08-25}, journal = {Ear and Hearing}, volume = {44}, number = {1}, pages = {155-166}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Wu, Mengfan; Christiansen, Stine; Fereczkowski, Michal; Neher, Tobias Revisiting Auditory Profiling: Can Cognitive Factors Improve the Prediction of Aided Speech-in-Noise Outcome? Journal Article Trends in Hearing, 26 , pp. 1-16, 2022. @article{Mengfan_congnitive, title = {Revisiting Auditory Profiling: Can Cognitive Factors Improve the Prediction of Aided Speech-in-Noise Outcome?}, author = {Mengfan Wu and Stine Christiansen and Michal Fereczkowski and Tobias Neher}, doi = {10.1177/23312165221113889}, year = {2022}, date = {2022-06-21}, journal = {Trends in Hearing}, volume = {26}, pages = {1-16}, abstract = {Hearing aids (HA) are the most common type of rehabilitation treatment for age-related hearing loss. However, HA users often obtain limited benefit from their devices, particularly in noisy environments, and thus many HA candidates do not use them at all. A possible reason for this could be that current HA fittings are audiogram-based, that is, they neglect supra-threshold factors. In an earlier study, an auditory-profiling method was proposed as a basis for more personalized HA fittings. This method classifies HA users into four profiles that differ in terms of hearing sensitivity and supra-threshold hearing abilities. Previously, HA users belonging to these profiles showed significant differences in terms of speech recognition in noise but not subjective assessments of speech-in-noise (SIN) outcome. Moreover, large individual differences within some profiles were observed. The current study therefore explored if cognitive factors can help explain these differences and improve aided outcome prediction. Thirty-nine older HA users completed sets of auditory and SIN tests as well as two tablet-based cognitive measures (the Corsi block-tapping and trail-making tests). Principal component analyses were applied to extract the dominant sources of variance both within individual tests producing many variables and within the three types of tests. Multiple linear regression analyses performed on the extracted components showed that auditory factors were related to aided speech recognition in noise but not to subjective SIN outcome. Cognitive factors were unrelated to aided SIN outcome. Overall, these findings provide limited support for adding those two cognitive tests to the profiling of HA users.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Hearing aids (HA) are the most common type of rehabilitation treatment for age-related hearing loss. However, HA users often obtain limited benefit from their devices, particularly in noisy environments, and thus many HA candidates do not use them at all. A possible reason for this could be that current HA fittings are audiogram-based, that is, they neglect supra-threshold factors. In an earlier study, an auditory-profiling method was proposed as a basis for more personalized HA fittings. This method classifies HA users into four profiles that differ in terms of hearing sensitivity and supra-threshold hearing abilities. Previously, HA users belonging to these profiles showed significant differences in terms of speech recognition in noise but not subjective assessments of speech-in-noise (SIN) outcome. Moreover, large individual differences within some profiles were observed. The current study therefore explored if cognitive factors can help explain these differences and improve aided outcome prediction. Thirty-nine older HA users completed sets of auditory and SIN tests as well as two tablet-based cognitive measures (the Corsi block-tapping and trail-making tests). Principal component analyses were applied to extract the dominant sources of variance both within individual tests producing many variables and within the three types of tests. Multiple linear regression analyses performed on the extracted components showed that auditory factors were related to aided speech recognition in noise but not to subjective SIN outcome. Cognitive factors were unrelated to aided SIN outcome. Overall, these findings provide limited support for adding those two cognitive tests to the profiling of HA users. |
Narayanan, Sreeram Kaithali; Rye, Palle; Piechowiak, Tobias; Ravn, Gert; Wolff, Anne; Houmøller, Sabina Storbjerg; Schmidt, Jesper Hvass; Hammershøi, Dorte Can real-ear insertion gain deviations from generic fitting prescriptions predict self-reported outcomes? Journal Article The International Journal of Audiology, 62 (5), pp. 433-441, 2022. @article{TIJA_SKN_J1, title = {Can real-ear insertion gain deviations from generic fitting prescriptions predict self-reported outcomes?}, author = {Sreeram Kaithali Narayanan and Palle Rye and Tobias Piechowiak and Gert Ravn and Anne Wolff and Sabina Storbjerg Houmøller and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.1080/14992027.2022.2053594}, doi = {10.1080/14992027.2022.2053594}, year = {2022}, date = {2022-04-07}, journal = {The International Journal of Audiology}, volume = {62}, number = {5}, pages = {433-441}, abstract = {Objective The aim of this study was to determine whether the differences in insertion gains from the first fit to generic prescriptions of hearing aids can predict the self-reported hearing aid (HA) outcomes for first-time and experienced HA users. Design This was a prospective observational study. Study Sample The study included 885 first-time and 330 experienced HA users with a valid real-ear measurement on both ears and answers to the abbreviated version of the Speech, Spatial, and Quality of Hearing (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaires. Results K-means clustering of gain differences between individual real-ear insertion gain to three generic gain prescriptions (NAL-NL2, NAL-RP, and one-third gain rules) was performed. The gain difference at higher frequencies generally differentiated the clusters. The experienced users in the cluster with fittings closest to NAL-NL2 and NAL-RP prescription were found to exhibit a higher IOI-HA Factor 1 score (representing the overall benefit of the hearing aid use). The gain differences to generic prescription did not affect other self-reported outcomes for first-time and experienced HA users. Conclusion The experienced HA users with minimal gain deviations from generic prescriptions reported better self-perceived benefits than users with larger deviations. However, this was not apparent in first-time users.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective The aim of this study was to determine whether the differences in insertion gains from the first fit to generic prescriptions of hearing aids can predict the self-reported hearing aid (HA) outcomes for first-time and experienced HA users. Design This was a prospective observational study. Study Sample The study included 885 first-time and 330 experienced HA users with a valid real-ear measurement on both ears and answers to the abbreviated version of the Speech, Spatial, and Quality of Hearing (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaires. Results K-means clustering of gain differences between individual real-ear insertion gain to three generic gain prescriptions (NAL-NL2, NAL-RP, and one-third gain rules) was performed. The gain difference at higher frequencies generally differentiated the clusters. The experienced users in the cluster with fittings closest to NAL-NL2 and NAL-RP prescription were found to exhibit a higher IOI-HA Factor 1 score (representing the overall benefit of the hearing aid use). The gain differences to generic prescription did not affect other self-reported outcomes for first-time and experienced HA users. Conclusion The experienced HA users with minimal gain deviations from generic prescriptions reported better self-perceived benefits than users with larger deviations. However, this was not apparent in first-time users. |
2020 |
Narayanan, Sreeram Kaithali; Piechowiak, Tobias; Wolff, Anne; Houmøller, Sabina Storbjerg; Narne, Vijaya K; Loquet, Gérard; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Speech related hearing aid benefit index derived from standardized self-reported questionnaire data Inproceedings Kressner, Abigail Anne; Regev, Jonathan; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Santurette, Sébastien; Dau, Torsten (Ed.): Proceedings of the International Symposium on Auditory and Audiological Research, 2020. @inproceedings{ISAAR2019_sreeram_print, title = {Speech related hearing aid benefit index derived from standardized self-reported questionnaire data}, author = {Sreeram Kaithali Narayanan and Tobias Piechowiak and Anne Wolff and Sabina Storbjerg Houmøller and Vijaya K. Narne and Gérard Loquet and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, editor = {Abigail Anne Kressner and Jonathan Regev and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Sébastien Santurette and Torsten Dau }, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2019-45}, year = {2020}, date = {2020-04-14}, booktitle = {Proceedings of the International Symposium on Auditory and Audiological Research}, volume = {7}, abstract = {Speech understanding in noisy environments has been the most desired hearing-aid (HA) benefit sought by HA users. This paper examines the possibility of developing a speech-related HA benefit index from the speech- related questions in the self-reported questionnaire data. One question from Health-Related Quality of Life (HRQoL) instrument 15D and nine questions from the Speech, Spatial and Qualities of Hearing Scale (SSQ) having a direct implication to speech were selected for the analysis. After applying weights relevant to 15D, a delta of base-line (prior to HA fitting) and follow-up (two months after the initial fitting) responses to the selected questions were determined. A principal component analysis (PCA) was performed on the scaled and centered delta values. The resultant principal component scores were used to derive the composite index indicative of speech-related HA benefit.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } Speech understanding in noisy environments has been the most desired hearing-aid (HA) benefit sought by HA users. This paper examines the possibility of developing a speech-related HA benefit index from the speech- related questions in the self-reported questionnaire data. One question from Health-Related Quality of Life (HRQoL) instrument 15D and nine questions from the Speech, Spatial and Qualities of Hearing Scale (SSQ) having a direct implication to speech were selected for the analysis. After applying weights relevant to 15D, a delta of base-line (prior to HA fitting) and follow-up (two months after the initial fitting) responses to the selected questions were determined. A principal component analysis (PCA) was performed on the scaled and centered delta values. The resultant principal component scores were used to derive the composite index indicative of speech-related HA benefit. |
2017 |
van Hauen, Sigurd Møller; Rukjær, Andreas Harbo; Ordoñez, Rodrigo; Hammershøi, Dorte Estimating auditory filter bandwidth using distortion product otoacoustic emissions Inproceedings Santurette, Sébastien; Dau, Torsten; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Poulsen, Torben (Ed.): Proceedings of the International Symposium on Auditory and Audiological Research: Vol. 6: Adaptive Processes in Hearing, pp. 263-270, The Danavox Jubilee Foundation 2017, ISBN: 978-87-990013-6-1. @inproceedings{SigurdISAAR2017, title = {Estimating auditory filter bandwidth using distortion product otoacoustic emissions}, author = {Sigurd Møller van Hauen and Andreas Harbo Rukjær and Rodrigo Ordoñez and Dorte Hammershøi}, editor = {Sébastien Santurette and Torsten Dau and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Torben Poulsen}, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2017-32}, isbn = {978-87-990013-6-1}, year = {2017}, date = {2017-08-23}, booktitle = {Proceedings of the International Symposium on Auditory and Audiological Research: Vol. 6: Adaptive Processes in Hearing}, pages = {263-270}, organization = {The Danavox Jubilee Foundation}, abstract = {The basic frequency selectivity in the listener’s hearing is often characterized by auditory filters. These filters are determined through listening tests, which estimate the masking threshold as a function of frequency of the tone and the bandwidth of the masking sound. The auditory filters have been shown to be wider for listeners with sensorineural impairment. In a recent study (Christensen et al., 2017) it was demonstrated on group basis that the distortion product stimulus ratio that provided the strongest 2 f1− f2 component at low frequencies had a strong correlation to the theoretical relation between frequency and auditory filter bandwidth, described by the equivalent rectangular bandwidth (ERB, Glasberg and Moore, 1990). The purpose of the present study is to test whether a similar correlation exists on an individual basis at normal audiometric frequencies. The optimal 2 f1 − f2 DPOAE ratio is determined for stimulus ratios between 1.1 and 1.6, at fixed primary levels (L1/L2 = 65/45 dB SPL). The auditory filters are determined using notched-noise method in a two alternative forced choice experiment with noise levels at 40 dB SPL/Hz. Optimal ratios and auditory filters are determined at 1, 2, and 4 kHz for 10 young normal-hearing subjects.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } The basic frequency selectivity in the listener’s hearing is often characterized by auditory filters. These filters are determined through listening tests, which estimate the masking threshold as a function of frequency of the tone and the bandwidth of the masking sound. The auditory filters have been shown to be wider for listeners with sensorineural impairment. In a recent study (Christensen et al., 2017) it was demonstrated on group basis that the distortion product stimulus ratio that provided the strongest 2 f1− f2 component at low frequencies had a strong correlation to the theoretical relation between frequency and auditory filter bandwidth, described by the equivalent rectangular bandwidth (ERB, Glasberg and Moore, 1990). The purpose of the present study is to test whether a similar correlation exists on an individual basis at normal audiometric frequencies. The optimal 2 f1 − f2 DPOAE ratio is determined for stimulus ratios between 1.1 and 1.6, at fixed primary levels (L1/L2 = 65/45 dB SPL). The auditory filters are determined using notched-noise method in a two alternative forced choice experiment with noise levels at 40 dB SPL/Hz. Optimal ratios and auditory filters are determined at 1, 2, and 4 kHz for 10 young normal-hearing subjects. |
2016 |
Hammershøi, Dorte; Ordoñez, Rodrigo; Christensen, Anders Tornvig More robust estimates for DPOAE level at audiometric frequencies Inproceedings Proceedings of the 22nd International Congress on Acoustics, Buenos Aires, Argentina, September 5-9 2016, pp. 1-9, ICA, 2016. @inproceedings{Hammershøi2016, title = {More robust estimates for DPOAE level at audiometric frequencies}, author = {Dorte Hammershøi and Rodrigo Ordoñez and Anders Tornvig Christensen}, url = {http://www.ica2016.org.ar/ica2016proceedings/ica2016/ICA2016-0885.pdf}, year = {2016}, date = {2016-09-05}, booktitle = {Proceedings of the 22nd International Congress on Acoustics, Buenos Aires, Argentina, September 5-9 2016}, number = {885}, pages = {1-9}, publisher = {ICA}, abstract = {Current clinical methods determine 2 f1 − f2 distortion product oto-acoustic emission (DPAOE) levels at discrete frequencies, and often only at the audiometric standard frequencies in order to save time. The measured result is known to be a superposition of at least two components, the generator component originating from a region around the primary f2, and the reflection component from the 2 f1 − f2 site. Distinct interference patterns in high resolution DPOAE data reveal that these two components can be of similar magnitude, and periodically cancel each other entirely. When measurements are made at only few frequencies, there is a risk to find one or more low amplitude measurement, even in a healthy ear with otherwise high emissions. In the present study, data from previous studies measured with a high frequency resolution is used for simulating a better use of measurements at and around the audiometric frequency. A ”local” model of the two component superposition is applied, and the trade-off between measurement time, and robustness of the measure is discussed.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } Current clinical methods determine 2 f1 − f2 distortion product oto-acoustic emission (DPAOE) levels at discrete frequencies, and often only at the audiometric standard frequencies in order to save time. The measured result is known to be a superposition of at least two components, the generator component originating from a region around the primary f2, and the reflection component from the 2 f1 − f2 site. Distinct interference patterns in high resolution DPOAE data reveal that these two components can be of similar magnitude, and periodically cancel each other entirely. When measurements are made at only few frequencies, there is a risk to find one or more low amplitude measurement, even in a healthy ear with otherwise high emissions. In the present study, data from previous studies measured with a high frequency resolution is used for simulating a better use of measurements at and around the audiometric frequency. A ”local” model of the two component superposition is applied, and the trade-off between measurement time, and robustness of the measure is discussed. |
Other
2023 |
Fereczkowski, Michal; Neher, Tobias Amplitude compression for listeners with rollover at above-conversational speech levels Conference 16th Congress of the European Federation of Audiology Societies, (0154), European Federation of Audiology Societies 2023. @conference{EFAS0154MF1, title = {Amplitude compression for listeners with rollover at above-conversational speech levels}, author = {Michal Fereczkowski and Tobias Neher}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0154}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Do Hearing Aids Help in Real-Life Work-Related Situations? Conference 16th Congress of the European Federation of Audiology Societies, (0304), European Federation of Audiology Societies 2023. @conference{SKNEFAS20230304, title = {Do Hearing Aids Help in Real-Life Work-Related Situations?}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0304}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Adoption and outcome for adult hearing aid users one-year post fitting Conference 16th Congress of the European Federation of Audiology Societies, (0317), European Federation of Audiology Societies 2023. @conference{SKNEFAS20232, title = {Adoption and outcome for adult hearing aid users one-year post fitting}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0317}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Möller, Sören; Wolff, Anne; Lund, Katja; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte The pattern of hearing use in daily life situations in an adult Danish population Conference 16th Congress of the European Federation of Audiology Societies, (0314), European Federation of Audiology Societies 2023. @conference{SKNEFAS20233, title = {The pattern of hearing use in daily life situations in an adult Danish population}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Sören Möller and Anne Wolff and Katja Lund and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0314}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2022 |
Fereczkowski, Michal Hearing-aid amplitude compression for listeners with rollover at above-conversational speech levels Conference Nordisk Audiologisk Selskabs bi-annual meeting (Book of Abstracts), Nordisk Audiologisk Selskab 2022. @conference{MFNAS20222, title = {Hearing-aid amplitude compression for listeners with rollover at above-conversational speech levels}, author = {Michal Fereczkowski}, year = {2022}, date = {2022-06-01}, booktitle = {Nordisk Audiologisk Selskabs bi-annual meeting (Book of Abstracts)}, organization = {Nordisk Audiologisk Selskab}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Rye, Palle; Houmøller, Sabina S; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Relation between audibility and self-reported outcome in a large cohort of adult hearing aid users Conference The Bi-Annual Meeting of the Nordic Audiological Society, Nordic Audiological Society 2022. @conference{SKNNAS2023, title = {Relation between audibility and self-reported outcome in a large cohort of adult hearing aid users}, author = {Sreeram Kaithali Narayanan and Palle Rye and Sabina S Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2022}, date = {2022-06-01}, booktitle = {The Bi-Annual Meeting of the Nordic Audiological Society}, organization = {Nordic Audiological Society}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Fereczkowski, Michal; Christiansen, Stine; Sanchez-Lopez, Raul; Neher, Tobias Hearing-aid amplitude compression for listeners with rollover at above-conversational speech levels Inproceedings Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark, 2022. @inproceedings{michal_ERBNAM2022, title = {Hearing-aid amplitude compression for listeners with rollover at above-conversational speech levels}, author = {Michal Fereczkowski and Stine Christiansen and Raul Sanchez-Lopez and Tobias Neher}, url = {https://www.conforg.fr/bin/time_table?dir=erbnam2022}, year = {2022}, date = {2022-05-10}, booktitle = {Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina S; Wolff, Anne; Tsai, Li-Tang; Lund, Katja; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper H; Hammershøi, Dorte Situations where users always wear or take off their hearing aids Inproceedings Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark, 2022. @inproceedings{SKN_ERBNAM2022, title = {Situations where users always wear or take off their hearing aids}, author = {Sreeram Kaithali Narayanan and Sabina S Houmøller and Anne Wolff and Li-Tang Tsai and Katja Lund and Dan Dupont Hougaard and Michael Gaihede and Jesper H Schmidt and Dorte Hammershøi}, url = {https://www.conforg.fr/bin/time_table?dir=erbnam2022}, year = {2022}, date = {2022-05-09}, booktitle = {Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Fereczkowski, Michal; Neher, Tobias Rollover effects at above-conversational levels in speech materials with low but not high context Conference Poster presentation at the Speech in Noise Workshop, (P31), 2022. @conference{SPIN2022, title = {Rollover effects at above-conversational levels in speech materials with low but not high context}, author = {Michal Fereczkowski and Tobias Neher}, url = {https://2022.speech-in-noise.eu/files/SPIN2022-Programme.pdf}, year = {2022}, date = {2022-01-20}, booktitle = {Poster presentation at the Speech in Noise Workshop}, number = {P31}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2021 |
Fereczkowski, Michal; Mikkelsen, Benedikte Degn; Neher, Tobias Rollover effects at higher-than-normal levels in speech materials with low but not high context Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{Michal_ISAAR2021, title = {Rollover effects at higher-than-normal levels in speech materials with low but not high context}, author = {Michal Fereczkowski and Benedikte Degn Mikkelsen and Tobias Neher}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-24}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Narayanan, Sreeram Kaithali; Wolff, Anne; Houmøller, Sabina S; Tsai, Li-Tang; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper H; Hammershøi, Dorte Timeline and preference of the hearing aid adjustments over a year of rehabilitation and relation to self-reported outcome Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{Sreeram_ISAAR2021, title = {Timeline and preference of the hearing aid adjustments over a year of rehabilitation and relation to self-reported outcome}, author = {Sreeram Kaithali Narayanan and Anne Wolff and Sabina S Houmøller and Li-Tang Tsai and Dan Dupont Hougaard and Michael Gaihede and Jesper H Schmidt and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-23}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Fereczkowski, Michal; Neher, Tobias Can word recognition scores predict aided outcome and guide hearing-aid fitting Conference 48th Erlanger Kolloquium for Audiological Research and Development, Erlangen, Germany, 2021. @conference{MF_TN_2021, title = {Can word recognition scores predict aided outcome and guide hearing-aid fitting}, author = {Michal Fereczkowski and Tobias Neher}, year = {2021}, date = {2021-02-12}, booktitle = {48th Erlanger Kolloquium for Audiological Research and Development, Erlangen, Germany}, abstract = {Background Hearing-impaired listeners differ widely in the benefit they obtain from hearing aids (HA). For effective rehabilitation, a priori identification of low-benefit listeners is important but remains challenging. In the clinic, monosyllabic word recognition scores (WRS) in quiet at a comfortable presentation level are routinely measured. However, while WRS are used for counselling, they are currently not used for HA treatment. Here, we investigate relations between ‘clinical’ WRS, ‘aided’ WRS (with individual, frequency-specific amplification) and two common HA outcome measures. Methods Thirty-seven experienced HA users aged 60-87 years participated. Clinical and aided WRS were measured 10 dB above the corresponding individual most comfortable levels. Aided WRS were also measured at two higher levels to determine maximum aided WRS and to investigate the presence of so-called rollover effects. Furthermore, aided Hearing-In-Noise Test (HINT) measurements were performed, and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire was administered. Results Maximum aided WRS and rollover presence were significant predictors of HINT performance. Maximum aided WRS also predicted IOI-HA ratings related to residual activity limitations. Clinical WRS failed to predict either outcome. Conclusions Aided WRS are useful for predicting HA outcome and may therefore guide HA treatment. Implications for the individualization of HA fittings will be discussed.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Background Hearing-impaired listeners differ widely in the benefit they obtain from hearing aids (HA). For effective rehabilitation, a priori identification of low-benefit listeners is important but remains challenging. In the clinic, monosyllabic word recognition scores (WRS) in quiet at a comfortable presentation level are routinely measured. However, while WRS are used for counselling, they are currently not used for HA treatment. Here, we investigate relations between ‘clinical’ WRS, ‘aided’ WRS (with individual, frequency-specific amplification) and two common HA outcome measures. Methods Thirty-seven experienced HA users aged 60-87 years participated. Clinical and aided WRS were measured 10 dB above the corresponding individual most comfortable levels. Aided WRS were also measured at two higher levels to determine maximum aided WRS and to investigate the presence of so-called rollover effects. Furthermore, aided Hearing-In-Noise Test (HINT) measurements were performed, and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire was administered. Results Maximum aided WRS and rollover presence were significant predictors of HINT performance. Maximum aided WRS also predicted IOI-HA ratings related to residual activity limitations. Clinical WRS failed to predict either outcome. Conclusions Aided WRS are useful for predicting HA outcome and may therefore guide HA treatment. Implications for the individualization of HA fittings will be discussed. |
2020 |
Narayanan, Sreeram Kaithali; Ravn, Gert Real ear measurements and standardization Conference Webinar, 1 December 2020, Danish Acoustical Society, 2020. @conference{SKN_GR_DAS2020, title = {Real ear measurements and standardization}, author = {Sreeram Kaithali Narayanan and Gert Ravn}, url = {https://d-a‐s.dk/events/bedre‐hoererehabilitering‐i‐danmark/}, year = {2020}, date = {2020-12-01}, booktitle = {Webinar, 1 December 2020}, publisher = {Danish Acoustical Society}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2019 |
Narayanan, Sreeram Kaithali; Piechowiak, Tobias; Wolff, Anne; Houmøller, Sabina Storbjerg; Narne, Vijay; Loquet, Gérard; Hougaard, Dan Dupont; Gaihede, Michael L; Schmidt, Jesper Hvass; Hammershøi, Dorte Speech related hearing aid benefit index derived from standardized self-reported questionnaire data Conference Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.50), The Danavox Jubilee Foundation 2019. @conference{isaar2019skn, title = {Speech related hearing aid benefit index derived from standardized self-reported questionnaire data}, author = {Sreeram Kaithali Narayanan and Tobias Piechowiak and Anne Wolff and Sabina Storbjerg Houmøller and Vijay Narne and Gérard Loquet and Dan Dupont Hougaard and Michael L Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/701058/}, 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.50}, organization = {The Danavox Jubilee Foundation}, abstract = {Speech understanding in noisy environments has been the most desired hearing aid (HA) benefit sought by hearing aid users. This paper examines the possibility of developing a speech related HA benefit index from correlated speech related questions from three different self-reported questionnaire's (SSQ12, IOI-HA, and 15D). The 4 questions in SSQ12 (question number 1,4,11 and 12), 3 questions in IOI-HA(question number 3,5 and 6) and 3rd question from health-related quality of life questionnaire 15D relating to speech were found correlated and are chosen for further analysis. After the normalization of the relevant questions, a principal component analysis (PCA) is used to reduce the dimensionality and determine the coefficients. The resultant coefficients are used to create a common speech related HA benefit index.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Speech understanding in noisy environments has been the most desired hearing aid (HA) benefit sought by hearing aid users. This paper examines the possibility of developing a speech related HA benefit index from correlated speech related questions from three different self-reported questionnaire's (SSQ12, IOI-HA, and 15D). The 4 questions in SSQ12 (question number 1,4,11 and 12), 3 questions in IOI-HA(question number 3,5 and 6) and 3rd question from health-related quality of life questionnaire 15D relating to speech were found correlated and are chosen for further analysis. After the normalization of the relevant questions, a principal component analysis (PCA) is used to reduce the dimensionality and determine the coefficients. The resultant coefficients are used to create a common speech related HA benefit index. |
0202 |
Fereczkowski, Michal; Neher, Tobias Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 0202. @inproceedings{Michal2_ISAAR2021, title = {Maximum aided word recognition score and rollover presence at higher-than-normal speech levels predict hearing-aid outcome effectively}, author = {Michal Fereczkowski and Tobias Neher}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {0202}, date = {0202-08-25}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
University Hospitals
Odense University Hospital
Rikke Schnack-Petersen
rikke.schnack-petersen@rsyd.dk
Aalborg University Hospital
Michael Gaihede
mlg@rn.dk
Copenhagen University Hospital
Jesper Borchorst Yde
jesper.borchorst.yde.01@regionh.dk
Academia
University of Southen Denmark
Jesper Hvass Schmidt
jesper.schmidt@rsyd.dk
Aalborg University
Dorte Hammershøi
dh@es.aau.dk
Technical University of Denmark
Torsten Dau
tdau@dtu.dk
Tech Service
Industry
Oticon
Karen Wibling Solgård
kaws@oticon.dk
GN Resound
Nikolai Bisgaard
nbisgaard@gnresound.com
WSAudiology
Filip Marchman Rønne
filip.roenne@wsa.com
