The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform
Cas Smits - One of the best experts on this subject based on the ideXlab platform.
-
A Smartphone National Hearing Test: Performance and Characteristics of Users
American Journal of Audiology, 2018Co-Authors: Karina C. De Sousa, De Wet Swanepoel, David R. Moore, Cas SmitsAbstract:Purpose The smartphone digits-in-noise Hearing Test, called hearZA, was made available as a self-Test in South Africa in March 2016. This study determined characteristics and Test performance of th...
-
the south african english smartphone digits in noise Hearing Test effect of age Hearing loss and speaking competence
Ear and Hearing, 2017Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Cas SmitsAbstract:Objectives This study determined the effect of Hearing loss and English-speaking competency on the South African English digits-in-noise Hearing Test to evaluate its suitability for use across native (N) and non-native (NN) speakers. Design A prospective cross-sectional cohort study of N and NN English adults with and without sensorineural Hearing loss compared pure-tone air conduction thresholds to the speech reception threshold (SRT) recorded with the smartphone digits-in-noise Hearing Test. A rating scale was used for NN English listeners' self-reported competence in speaking English. This study consisted of 454 adult listeners (164 male, 290 female; range 16 to 90 years), of whom 337 listeners had a best ear four-frequency pure-tone average (4FPTA; 0.5, 1, 2, and 4 kHz) of ≤25 dB HL. Results A linear regression model identified three predictors of the digits-in-noise SRT, namely, 4FPTA, age, and self-reported English-speaking competence. The NN group with poor self-reported English-speaking competence (≤5/10) performed significantly (p Conclusions Self-reported English-speaking competence had a significant influence on the SRT obtained with the smartphone digits- in-noise Test. A logistic regression approach considering SRT, self-reported English-speaking competence, and age as predictors of best ear 4FPTA >25 dB HL showed that the Test can be used as an accurate Hearing screening tool for N and NN English speakers. The smartphone digits-in-noise Test, therefore, allows Testing in a multilingual population familiar with English digits using dynamic cutoff values that can be chosen according to self-reported English-speaking competence and age.
-
development and validation of a smartphone based digits in noise Hearing Test in south african english
International Journal of Audiology, 2016Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Thomas Christopher Hopper, Cas SmitsAbstract:AbstractObjective: The objective of this study was to develop and validate a smartphone-based digits-in-noise Hearing Test for South African English. Design: Single digits (0–9) were recorded and spoken by a first language English female speaker. Level corrections were applied to create a set of homogeneous digits with steep speech recognition functions. A smartphone application was created to utilize 120 digit-triplets in noise as Test material. An adaptive Test procedure determined the speech reception threshold (SRT). Experiments were performed to determine headphones effects on the SRT and to establish normative data. Study sample: Participants consisted of 40 normal-Hearing subjects with thresholds ≤15 dB across the frequency spectrum (250–8000 Hz) and 186 subjects with normal-Hearing in both ears, or normal-Hearing in the better ear. Results: The results show steep speech recognition functions with a slope of 20%/dB for digit-triplets presented in noise using the smartphone application. The results ...
-
How we do it: The Dutch functional Hearing-screening Tests by telephone and internet.
Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, 2006Co-Authors: Cas Smits, Paul Merkus, Tammo HoutgastAbstract:Keypoints • The Dutch National Hearing Test is a reliable and very successful functional Hearing–screening Test by telephone. An internet version of the National Hearing Test was also implemented. • The National Hearing Test is a fully automatic adaptive speech-in-noise Test that uses digit-triplets as speech material. The result of the Test is given as ‘good,’‘insufficient,’ or ‘poor.’ • The Test by telephone performs better in reaching older subjects, who are more likely to suffer from Hearing loss, than the Test by internet. • More than 50% of the participants who scored ‘insufficient’ or ‘poor’ followed the recommendation to visit a GP, Hearing-aid dispenser, ENT specialist or Audiological Center. • The Tests contribute to increase the identification and treatment of older Hearing-impaired subjects.
Jennimari Potgieter - One of the best experts on this subject based on the ideXlab platform.
-
the south african english smartphone digits in noise Hearing Test effect of age Hearing loss and speaking competence
Ear and Hearing, 2017Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Cas SmitsAbstract:Objectives This study determined the effect of Hearing loss and English-speaking competency on the South African English digits-in-noise Hearing Test to evaluate its suitability for use across native (N) and non-native (NN) speakers. Design A prospective cross-sectional cohort study of N and NN English adults with and without sensorineural Hearing loss compared pure-tone air conduction thresholds to the speech reception threshold (SRT) recorded with the smartphone digits-in-noise Hearing Test. A rating scale was used for NN English listeners' self-reported competence in speaking English. This study consisted of 454 adult listeners (164 male, 290 female; range 16 to 90 years), of whom 337 listeners had a best ear four-frequency pure-tone average (4FPTA; 0.5, 1, 2, and 4 kHz) of ≤25 dB HL. Results A linear regression model identified three predictors of the digits-in-noise SRT, namely, 4FPTA, age, and self-reported English-speaking competence. The NN group with poor self-reported English-speaking competence (≤5/10) performed significantly (p Conclusions Self-reported English-speaking competence had a significant influence on the SRT obtained with the smartphone digits- in-noise Test. A logistic regression approach considering SRT, self-reported English-speaking competence, and age as predictors of best ear 4FPTA >25 dB HL showed that the Test can be used as an accurate Hearing screening tool for N and NN English speakers. The smartphone digits-in-noise Test, therefore, allows Testing in a multilingual population familiar with English digits using dynamic cutoff values that can be chosen according to self-reported English-speaking competence and age.
-
development and validation of a smartphone based digits in noise Hearing Test in south african english
International Journal of Audiology, 2016Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Thomas Christopher Hopper, Cas SmitsAbstract:AbstractObjective: The objective of this study was to develop and validate a smartphone-based digits-in-noise Hearing Test for South African English. Design: Single digits (0–9) were recorded and spoken by a first language English female speaker. Level corrections were applied to create a set of homogeneous digits with steep speech recognition functions. A smartphone application was created to utilize 120 digit-triplets in noise as Test material. An adaptive Test procedure determined the speech reception threshold (SRT). Experiments were performed to determine headphones effects on the SRT and to establish normative data. Study sample: Participants consisted of 40 normal-Hearing subjects with thresholds ≤15 dB across the frequency spectrum (250–8000 Hz) and 186 subjects with normal-Hearing in both ears, or normal-Hearing in the better ear. Results: The results show steep speech recognition functions with a slope of 20%/dB for digit-triplets presented in noise using the smartphone application. The results ...
Jan-eric Litton - One of the best experts on this subject based on the ideXlab platform.
-
An internet-based Hearing Test for simple audiometry in nonclinical settings: preliminary validation and proof of principle.
Otology & neurotology : official publication of the American Otological Society American Neurotology Society [and] European Academy of Otology and Neu, 2010Co-Authors: Louise Honeth, Christin Bexelius, Mikael Eriksson, Sven Sandin, Jan-eric Litton, Ulf Rosenhall, Olof Nyrén, Dan Bagger-sjöbäckAbstract:Objective:To investigate the validity and reproducibility of a newly developed internet-based self-administered Hearing Test using clinical pure-tone air-conducted audiometry as gold standard.Study Design:Cross-sectional intrasubject comparative study.Setting:Karolinska University Hospital, Solna, S
-
Evaluation of an Internet-Based Hearing Test—Comparison with Established Methods for Detection of Hearing Loss
Journal of medical Internet research, 2008Co-Authors: Christin Bexelius, Louise Honeth, Alexandra Ekman, Mikael Eriksson, Sven Sandin, Dan Bagger-sjöbäck, Jan-eric LittonAbstract:Background: Hearing impairment is most accurately measured by a clinical pure-tone audiogram. This method is not suitable for large-scale, population-based epidemiological studies as it requires that study participants visit a clinic with trained personnel. An alternative approach to measuring Hearing ability is self-estimation through questionnaires, but the correlation to clinical audiometric Tests varies. Objective: To evaluate an Internet-based Hearing Test pilot compared to a question about self-estimated Hearing and the feasibility of using an Internet-based Hearing Test and an Internet-based questionnaire in a population of 560 members of the Swedish Hunters’ Association in the age group 20-60 years. Methods: An invitation was mailed to the participants in March 2007 together with the URL to the study Web site, a personal username, and a password. The Web site included the questionnaire, the Hearing Test, and instructions for participating in the study. The Hearing Test resembles a clinical audiogram presenting 6 tones between 500 and 8000 Hz. Tones are presented between 0 and 60 dB, and the participant responds to the tones by pressing the space bar. The Hearing Test requires headphones and is based on JAVA programming. Before the participant can start the Hearing Test, it has to be calibrated against a reference person with good Hearing between 15 and 35 years of age. Results: After 5 months, 162 out of 560 (29%) had answered the questionnaire, out of which 88 (16%) had completed the Hearing Test. Those who actively declined participation numbered 230 out of 560 (41%). After removing duplicates and Hearing Tests calibrated by unreliable reference data, 61 Hearing Tests remained for analysis. The prevalence of Hearing impairment from the Internet-based Hearing Test was 20% (12 out of 61), compared to 52% (32 out of 61) from the self-estimated question. Those who completed the Hearing Test were older than the non-participants, and more had headphones (P = .003) and the correct version of the JAVA program (P = .007) than those who only answered the questionnaire. Conclusions: Though an Internet-based Hearing Test cannot replace a clinical pure-tone audiogram conducted by a trained audiologist, it is a valid and useful screening tool for Hearing ability in a large population carried out at a low cost. [J Med Internet Res 2008;10(4):e32]
-
evaluation of an internet based Hearing Test comparison with established methods for detection of Hearing loss
Journal of Medical Internet Research, 2008Co-Authors: Christin Bexelius, Louise Honeth, Alexandra Ekman, Mikael Eriksson, Sven Sandin, Dan Baggersjoback, Jan-eric LittonAbstract:Background: Hearing impairment is most accurately measured by a clinical pure-tone audiogram. This method is not suitable for large-scale, population-based epidemiological studies as it requires that study participants visit a clinic with trained personnel. An alternative approach to measuring Hearing ability is self-estimation through questionnaires, but the correlation to clinical audiometric Tests varies. Objective: To evaluate an Internet-based Hearing Test pilot compared to a question about self-estimated Hearing and the feasibility of using an Internet-based Hearing Test and an Internet-based questionnaire in a population of 560 members of the Swedish Hunters’ Association in the age group 20-60 years. Methods: An invitation was mailed to the participants in March 2007 together with the URL to the study Web site, a personal username, and a password. The Web site included the questionnaire, the Hearing Test, and instructions for participating in the study. The Hearing Test resembles a clinical audiogram presenting 6 tones between 500 and 8000 Hz. Tones are presented between 0 and 60 dB, and the participant responds to the tones by pressing the space bar. The Hearing Test requires headphones and is based on JAVA programming. Before the participant can start the Hearing Test, it has to be calibrated against a reference person with good Hearing between 15 and 35 years of age. Results: After 5 months, 162 out of 560 (29%) had answered the questionnaire, out of which 88 (16%) had completed the Hearing Test. Those who actively declined participation numbered 230 out of 560 (41%). After removing duplicates and Hearing Tests calibrated by unreliable reference data, 61 Hearing Tests remained for analysis. The prevalence of Hearing impairment from the Internet-based Hearing Test was 20% (12 out of 61), compared to 52% (32 out of 61) from the self-estimated question. Those who completed the Hearing Test were older than the non-participants, and more had headphones (P = .003) and the correct version of the JAVA program (P = .007) than those who only answered the questionnaire. Conclusions: Though an Internet-based Hearing Test cannot replace a clinical pure-tone audiogram conducted by a trained audiologist, it is a valid and useful screening tool for Hearing ability in a large population carried out at a low cost. [J Med Internet Res 2008;10(4):e32]
Tobias Kleinjung - One of the best experts on this subject based on the ideXlab platform.
-
Occurence of a round window membrane rupture in patients with sudden sensorineural Hearing loss
BMC Ear Nose and Throat Disorders, 2012Co-Authors: Frank Haubner, Christian Rohrmeier, Christoph Koch, Veronika Vielsmeier, Jürgen Strutz, Tobias KleinjungAbstract:Background Aim of the present study was to evaluate the occurence of a round window membrane rupture and the effects of Hearing restoration after exploratory tympanotomy and sealing of the round window (niche) in patients with unilateral sudden deafness. Methods Retrospective analysis of patients’ charts in a tertiary referral center. Charts of 69 patients with sudden deafness followed by exploratory tympanotomy were retrospectively analyzed. Pure-tone audiometry data before and after tympanotomy were compared to determine the outcome of Hearing recovery. The postoperative Hearing Test values were documented 3 weeks after tympanotomy. All surgical reports were reviewed with regard to the surgical technique performed and the intraoperative findings. Results 18.8% of the patients revealed a visible perilymphatic fistula in the round window niche. 89.8% of the patients reported no typical history for a round window membrane rupture. All patients were treated with an exploratory tympanotomy under local anesthesia and an intravenous corticosteroid treatment regimen. The majority of the surgeons used a fat plomb to cover the round window. Postoperative Hearing was significantly improved compared to the preoperative Hearing Test data. No patient showed a worsened Hearing curve after the treatment. Conclusion Most patients suffering from unilateral sudden deafness had no visible perilymphatic fistula. In our study population, the majority of patients reported no typical history of a pressure elevation in the inner ear. Exploratory tympanotomy is a safe procedure that may support Hearing recovery in patients with sudden deafness in addition to the established treatment regimen including high-dose steroids.
De Wet Swanepoel - One of the best experts on this subject based on the ideXlab platform.
-
the south african english smartphone digits in noise Hearing Test effect of age Hearing loss and speaking competence
Ear and Hearing, 2017Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Cas SmitsAbstract:Objectives This study determined the effect of Hearing loss and English-speaking competency on the South African English digits-in-noise Hearing Test to evaluate its suitability for use across native (N) and non-native (NN) speakers. Design A prospective cross-sectional cohort study of N and NN English adults with and without sensorineural Hearing loss compared pure-tone air conduction thresholds to the speech reception threshold (SRT) recorded with the smartphone digits-in-noise Hearing Test. A rating scale was used for NN English listeners' self-reported competence in speaking English. This study consisted of 454 adult listeners (164 male, 290 female; range 16 to 90 years), of whom 337 listeners had a best ear four-frequency pure-tone average (4FPTA; 0.5, 1, 2, and 4 kHz) of ≤25 dB HL. Results A linear regression model identified three predictors of the digits-in-noise SRT, namely, 4FPTA, age, and self-reported English-speaking competence. The NN group with poor self-reported English-speaking competence (≤5/10) performed significantly (p Conclusions Self-reported English-speaking competence had a significant influence on the SRT obtained with the smartphone digits- in-noise Test. A logistic regression approach considering SRT, self-reported English-speaking competence, and age as predictors of best ear 4FPTA >25 dB HL showed that the Test can be used as an accurate Hearing screening tool for N and NN English speakers. The smartphone digits-in-noise Test, therefore, allows Testing in a multilingual population familiar with English digits using dynamic cutoff values that can be chosen according to self-reported English-speaking competence and age.
-
development and validation of a smartphone based digits in noise Hearing Test in south african english
International Journal of Audiology, 2016Co-Authors: Jennimari Potgieter, De Wet Swanepoel, Hermanus Carel Myburgh, Thomas Christopher Hopper, Cas SmitsAbstract:AbstractObjective: The objective of this study was to develop and validate a smartphone-based digits-in-noise Hearing Test for South African English. Design: Single digits (0–9) were recorded and spoken by a first language English female speaker. Level corrections were applied to create a set of homogeneous digits with steep speech recognition functions. A smartphone application was created to utilize 120 digit-triplets in noise as Test material. An adaptive Test procedure determined the speech reception threshold (SRT). Experiments were performed to determine headphones effects on the SRT and to establish normative data. Study sample: Participants consisted of 40 normal-Hearing subjects with thresholds ≤15 dB across the frequency spectrum (250–8000 Hz) and 186 subjects with normal-Hearing in both ears, or normal-Hearing in the better ear. Results: The results show steep speech recognition functions with a slope of 20%/dB for digit-triplets presented in noise using the smartphone application. The results ...
