Searched for: subject%3A%22Hearing%22
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van Wijngaarden, S.J. (author), van Balken, J.A. (author)
A novel approach for disrupting offensive chants at sporting events is proposed, based on attacking synchronization between individuals. Since timing is crucial for coordination between chanters, disruption of timing is expected to be effective against undesired chants. Delayed auditory feedback is known to disrupt timing in individual sound...
article 2007
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Zahorik, P. (author), Brungart, D.S. (author), Bronkhorst, A.W. (author), TNO Defensie en Veiligheid (author)
Although auditory distance perception is a critical component of spatial hearing, it has received substantially less scienti.c attention than the directional aspects of auditory localization. Here we summarize current knowledge on auditory distance perception, with special emphasis on recent research results. The summary will be structured...
article 2005
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Kastelein, R.A. (author), van Schie, R. (author), Verboom, W.C. (author), de Haan, D. (author), TNO Defensie en Veiligheid (author)
The unmasked underwater hearing sensitivities of an 8-year-old male and a 7-year-old female Steller sea lion were measured in a pool, by using behavioral psychophysics. The animals were trained with positive reinforcement to respond when they detected an acoustic signal and not to respond when they did not. The signals were narrow-band,...
article 2005
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Kastelein, R.A. (author), Janssen, M. (author), Verboom, W.C. (author), de Haan, D. (author), TNO Defensie en Veiligheid (author)
Receiving beam patterns of a harbor porpoise were measured in the horizontal plane, using narrow-band frequency modulated signals with center frequencies of 16, 64, and 100 kHz. Total signal duration was 1000 ms, including a 200 ms rise time and 300 ms fall time. The harbor porpoise was trained to participate in a psychophysical test and...
article 2005
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Vos, J.J. (author), TNO Defensie en Veiligheid (author)
article 2005
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Abel, S.M. (author), Crabtree, B. (author), Baranski, J.V. (author), Smith, D.G. (author), Thompson, M.M. (author), Steeneken, H.J.M. (author), Verhave, J.A. (author), Buckey, J.C. (author), Alvarenga, D.L. (author), Comtois, J.M. (author), TNO Technische Menskunde (author)
Introduction: Elevated hearing thresholds have been documented in some astronauts after long-term spaceflights although noise levels were lower than those normally associated with noise-induced hearing loss in ground-based operations. The present study was conducted to determine whether prolonged exposure (70 h) to levels (72 dBA) recorded on...
article 2004
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van Wijngaarden, S.J. (author), Bronkhorst, A.W. (author), Houtgast, T. (author), Steeneken, H.J.M. (author), TNO Technische Menskunde (author)
While the Speech Transmission Index ~STI! is widely applied for prediction of speech intelligibility in room acoustics and telecommunication engineering, it is unclear how to interpret STI values when non-native talkers or listeners are involved. Based on subjectively measured psychometric functions for sentence intelligibility in noise, for...
article 2004
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Hille, E.T.M. (author), Verkerk, P.H. (author), van Straaten, H.L.M. (author), TNO Preventie en Gezondheid (author)
article 2004
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TNO Technische Menskunde (author), Steeneken, H.J.M. (author), Verhave, J.A. (author)
Active noise reduction is a successful addition to passive ear-defenders for improvement of the sound attenuation at low frequencies. Design and assessment methods are discussed, focused on subjective and objective attenuation measurements, stability, and high noise level applications. Active noise reduction systems are suitable for integration...
article 2004
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Miedema, H.M.E. (author), Vos, H. (author), Instituut voor Ruimtelijke Organisatie TNO (author)
This article integrates findings from the literature and new results regarding noise sensitivity. The new results are based on analyses of 28 combined datasets (N=23 038), and separate analyses of a large aircraft noise study (N=10939). Three topics regarding noise sensitivity are discussed, namely, its relationship with noise exposure, its...
article 2003
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van Straaten, H.L.M. (author), Hille, E.T.M. (author), Kok, J.H. (author), Verkerk, P.H. (author), Baerts, W. (author), Bunkers, C.M. (author), Smink, E.W.A. (author), van Elburg, R.M. (author), de Kleine, M.J.K. (author), Ilsen, A. (author), Maingay-Visser, A.P.G.F. (author), de Vries, L.S. (author), Weisglas-Kuperus, N. (author)
Aim: As part of a future national neonatal hearing screening programme in the Netherlands, automated auditory brainstem response (AABR) hearing screening was implemented in seven neonatal intensive care units (NICUs). The objective was to evaluate key outcomes of this programme: participation rate, first stage success rate, pass/referral rates,...
article 2003
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Vos, J. (author), Geurtsen, F.W.M. (author)
As an alternative to the A-weighted sound exposure level (ASEL) Schomer et al. [J. Acoust. Soc. Am. 110, 2390-2397 (2001)] used the equal-loudness level contours as a dynamic filter to determine the loudness-level-weighted sound exposure level (LLSEL). From their analyses they concluded that the LLSEL better orders and assesses traffic and...
article 2003
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Bronkhorst, A.W. (author), Brand, T. (author), Wagener, K. (author)
It was investigated whether the model for context effects, developed earlier by Bronkhorst et al. [J. Acoust. Soc. Am. 93, 499-509 (1993)], can be applied to results of sentence tests, used for the evaluation of speech recognition. Data for two German sentence tests, that differed with respect to their semantic content, were analyzed. They had...
article 2002
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Verhave, J.A. (author), Steeneken, H.J.M. (author), van Wijngaarden, S.J. (author), TNO Technische Menskunde (author)
Actieve geluidsreductie (ANR) is, mits goed toegepast, een waardevolle aanvulling op passieve gehoorbescherming.
article 2002
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Langendijk, E.H.A. (author), Kistler, D.J. (author), Wightman, F.L. (author), TNO Technische Menskunde (author)
Localizing a target sound can be a challenge when one or more distracter sounds are present at the same time. This study measured the effect of distracter position on target localization for one distracter (17 positions) and two distracters (21 combinations of 17 positions). Listeners were instructed to point to the apparent position of a train...
article 2001
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Boshuizen, H.C. (author), van der Lem, G.J. (author), de Kauffman-Boer, M.A. (author), van Zanten, G.A. (author), Oudesluys-Murphy, A.M. (author), Verkerk, P.H. (author)
Objective - To compare the cost effectiveness of various strategies for neonatal hearing screening by estimating the cost per hearing impaired child detected. Design - Cost analyses with a simulation model, including a multivariate sensitivity analysis. Comparisons of the cost per child detected were made for: screening method (automated...
article 2001
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Kauffman-de Boer, M.A. (author), de Ridder-Sluiter, H. (author), Schuitema, T. (author), Uilenburg, N. (author), Vinks, E. (author), van der Ploeg, C.P.B. (author), Lanting, C. (author), Oudshoorn, K. (author), Verkerk, P.H. (author), TNO Preventie en Gezondheid (author)
book 2001
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van Wijngaarden, S.J. (author), Rots, G. (author), TNO Technische Menskunde (author)
Background: Aircrews are often exposed to high ambient sound levels, especially in military aviation. Since long-term exposure to such noise may cause hearing damage, selection of adequate hearing protective devices is crucial. Such devices also affect speech intelligibility. When speech intelligibility and hearing protection lead to conflicting...
article 2001
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Cappaert, N.L.M. (author), Klis, S.F.L. (author), Baretta, A.B. (author), Muijser, H. (author), Smoorenburg, G.F. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Rats were exposed to ethyl benzene at 0, 300, 400 and 550 ppm for 8 hours/day for 5 consecutive days. Three to six weeks after the exposure, auditory function was tested by measuring compound action potentials (CAP) in the frequency range of 1-24 kHz and 2f1-f2 distortion product otoacoustic emissions (DPOAEs) in the frequency range of 4-22.6...
article 2000
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Sprangers, M.A.G. (author), de Regt, E.B. (author), Andries, F. (author), van Agt, H.M.E. (author), Bijl, R.V. (author), de Boer, J.B. (author), Foets, M. (author), Hoeymans, N. (author), Jacobs, A.E. (author), Kempen, G.I.J.M. (author), Miedema, H.S. (author), Tijhuis, M.A.R. (author), de Haes, H.C.J.M. (author), NIA TNO (author)
The objective of the present study is to compare the QL of a wide range of chronic disease patients. Secondary analysis of eight existing data sets, including over 15,000 patients, was performed. The studies were conducted between 1993 and 1996 and included population-based samples, referred samples, consecutive samples, and/or consecutive...
article 2000
Searched for: subject%3A%22Hearing%22
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