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Miedema, H.M.E. (author), Vos, H. (author), TNO Preventie en Gezondheid (author)
The effect of demographic variables (sex, age, education level, occupational status, size of household, homeownership, dependency on the noise source, and use of the noise source) and two attitudinal variables (noise sensitivity and fear of the noise source) on noise annoyance is investigated. It is found that fear and noise sensitivity have a...
article 1999
document
Salomons, E.M. (author), Technisch Physische Dienst TNO - TH (author)
The sound field of a coherent line source in a nonrefracting, turbulent atmosphere is studied. An expression for the sound pressure level in the frequency domain is developed, based on a discretization of the line source into a set of point sources. Atmospheric turbulence is taken into account by the mutual coherence function. Numerical...
article 1999
document
van Wijngaarden, S.J. (author)
The intelligibility of speech is known to be lower if the talker is non-native instead of native for the given language. This study is aimed at quantifying the overall degradation due to acoustic-phonetic limitations of non-native talkers of Dutch, specifically of Dutch-speaking Americans who have lived in The Netherlands 1-3 years. Experiments...
bookPart 1999
document
Miedema, H.M.E. (author), Vos, H. (author), de Jong, R.G. (author), TNO Preventie en Gezondheid (author)
A decrease in the level of sound events can compensate for an increase in the level of other events, but noise metrics assume different tradeoffs. Noise metrics also differ in the penalty applied to noise in the evening and to noise in the night, and in the definition of these periods. These two aspects of noise metrics, i.e., the tradeoff and...
article 2000
document
Borst, H.C. (author), TNO Bouw (author)
TNO has developed a GIS based instrument, named Urbis, which makes it possible to assess the noise situation in a municipality or region as a whole, with a high level of detail. On the basis of activity or emission data (road-traffic intensities, acoustical reports, etc.), noise loads are calculated for different source-types (road traffic, rail...
conference paper 2000
document
Passchier-Vermeer, W. (author), Passchier, W.F. (author), TNO Preventie en Gezondheid (author)
Exposure to noise constitutes a health risk. There is sufficient scientific evidence that noise exposure can induce hearing impairment, hypertension and ischemic heart disease, annoyance, sleep disturbance, and decreased school performance. For other effects such as changes in the immune system and birth defects, the evidence is limited. Most...
article 2000
document
Vos, J. (author)
Various procedures for rating total annoyance caused by different environmental sounds have been proposed. It is explained that the adequacy of the majority of these models is very limited. A more promising weighted summation model is described in which for each single source in the combination, the sound exposure will be first expressed as the...
conference paper 2000
document
TNO Preventie en Gezondheid (author), Miedema, H.M.E. (author), Passchier, W. (author), Vos, H. (author)
report 2000
document
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
document
Miedema, H.M.E. (author), Oudshoorn, C.G.M. (author), TNO Preventie en Gezondheid (author)
We present a model of the distribution of noise annoyance with the mean varying as a function of the noise exposure. Day-night level (DNL) and day-evening-night level (DENL) were used as noise descriptors. Because the entire annoyace distribution has been modeled, any annoyance measure that summarizes this distribution can be calculated from the...
article 2001
document
Borst, H.C. (author), TNO Bouw (author)
An important aspect of the EU noise policy is mapping of noise and noise effects and the formulation of noise action plans. In the Netherlands, due to the new policy on noise (MIG), the municipalities will be responsible for the formulation of a local noise policy. An instrument for the assessment of the noise and noise effects in a municipality...
conference paper 2001
document
Miedema, H.M.E. (author), TNO Bouw (author)
Noise annoyance is a primary indication that noise is a problem, and by itself noise annoyance means that the quality of life is adversely affected. Results from noise annoyance research are presented that make possible a detailed evaluation of noise exposures with respect to the annoyance induced. Then a summary of the status of the evidence...
conference paper 2001
document
van Wijngaarden, S.J. (author)
The intelligibility of speech is known to be lower if the speaker is non-native instead of native for the given language. This study is aimed at quantifying the overall degradation due to limitations of non-native speakers of Dutch, specifically of Dutch-speaking Americans who have lived in the Netherlands 1-3 years. Experiments were focused on...
article 2001
document
Steeneken, H.J.M. (author), Verhave, J. (author)
article 2001
document
Vos, J. (author), TNO Technische Menskunde (author)
A laboratory study was designed in which the annoyance was investigated for 14 different impulse sound types produced by various firearms ranging in caliber from 7.62 to 155 mm. Sixteen subjects rated the annoyance for the simulated conditions of (1) being outdoors, and (2) being indoors with the windows closed. In the latter case, a...
article 2001
document
TNO Preventie en Gezondheid (author), Rövekamp, A.J.M. (author)
report 2001
document
Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
In an earlier study we derived robust frequency-weighting functions for prediction of the intelligibility of short nonsense words.These frequency-weighting functions are applied for prediction of intelligibility such as with the speech transmission index (STI).Six independent experiments revealed essentially similar frequency-weighting functions...
article 2002
document
Waals, J.A.J.S. (author), Kooi, F.L. (author), Kriekaard, J.J. (author), TNO Technische Menskunde (author)
While speech recognition in principle may be one of the most natural interfaces, in practice it is not due to the lack of user-friendliness. Words are regularly interpreted wrong, and subjects tend to articulate in an exaggerated manner. We explored the potential of visually supported error correction (speech recognition integrated in a...
conference paper 2002
document
van Wijngaarden, S.J. (author), Steeneken, H.J.M. (author), Houtgast, T. (author), TNO Technische Menskunde (author)
article 2002
document
van Wijngaarden, S.J. (author), Tardelli, J.D. (author), Hassanein, H. (author), Ray, B. (author), Collura, J.S. (author), TNO Technische Menskunde (author)
Traditionally, the performance of low bit rate coders was measured by two performance characteristics, namely quality and intelligibility. However, those characteristics are not adequate for measuring the performance over a realistic communication link, where factors such as hannel conditions (errors, delay, etc.), dynamic speaker compensation ...
conference paper 2002
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