Results 271 to 280 of about 1,876,985 (311)
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Comparison of impulse noise damage risk criteria using the chinchilla impulse noise exposures.
The Journal of the Acoustical Society of America, 2010The 1968 CHABA recommendations to limit impulsive noise exposure to levels below 140 dB sound pressure level form the basis of current United States occupational and military standards. The U.S. military standard, MIL-STD 1474D, estimates the number of allowable shots to which a person may be exposed using peak level, B-duration, for varying levels of ...
William J. Murphy +2 more
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The Journal of the Acoustical Society of America, 1969
When measuring ac signals with an averaging instrument, there is always a problem of what is actually measured at the low end of the frequency range. Actually, it is not only the frequency content of the signal itself that is important, but rather the frequency content of the envelope of the signal.
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When measuring ac signals with an averaging instrument, there is always a problem of what is actually measured at the low end of the frequency range. Actually, it is not only the frequency content of the signal itself that is important, but rather the frequency content of the envelope of the signal.
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Noise dosimeter for monitoring exposure to impulse noise
Applied Acoustics, 2005Abstract Commercially available noise dosimeters do not perform properly in impulsive noise environments because they suffer from instrumentation limitations and lack metrics that characterize impulse noise. In this paper, a design concept is proposed for an impulse noise monitoring dosimeter that addresses the current dosimeter’s limited ...
Chucri A. Kardous +2 more
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Robust Adaptation in Impulsive Noise
IEEE Transactions on Signal Processing, 2016The popular least-mean-squares (LMS) algorithm for adaptive filtering is nonrobust against impulsive noise in the measurements. The presence of this type of noise degrades the transient and steady-state performance of the algorithm. Since the distribution of the impulsive noise is generally unknown, a robust semi-parametric approach to adaptive ...
Sara Al-Sayed +2 more
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IEEE Transactions on Communication Technology, 1964
The impulse-noise cancelling device recently described by W.L. Black [IEEE Trans on Comm. Systems, vol. CS-11, p. 506; December, 1963] has in principle two noteworthy properties that he did not mention. First, the canceller does not fail completely when two noise pulses overlap in time, since the residual d.isturbance, if the two pulse responses are ...
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The impulse-noise cancelling device recently described by W.L. Black [IEEE Trans on Comm. Systems, vol. CS-11, p. 506; December, 1963] has in principle two noteworthy properties that he did not mention. First, the canceller does not fail completely when two noise pulses overlap in time, since the residual d.isturbance, if the two pulse responses are ...
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Noise sampling issues for impact/impulse noise surveys
The Journal of the Acoustical Society of America, 2003Noise-induced hearing loss (NIHL) has been recognized as a serious health concern for decades. ISO Standard 1999:1990 provides a means to predict noise-induced hearing loss (NIHL) based on LAeq measurements in the working environments of workers. This standard seems to work well for predicting hearing loss in continuous noise fields.
Mary M. Prince, Jeffrey S. Vipperman
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Review on Active Noise Control Technology for α-Stable Distribution Impulsive Noise
Circuits Syst. Signal Process., 2021Shuming Chen +5 more
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This document focuses on the data flow into the Impulsive Underwater Noise database, which hosts underwater noise collected continuously over a period of time. The data hosted at ICES are primarily collected by research institutions within HELCOM and/or OSPAR member countries.
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Journal of Occupational and Environmental Medicine, 1967
R R, Coles, C G, Rice
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R R, Coles, C G, Rice
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[Evaluation of impulse noise].
Laryngo- rhino- otologie, 1990The assessment of the risk of hearing loss due to impulse-weighted sound levels in working places leads to wrong results at often intermittent noise exposures, since the energy-equivalent continuous noise level does not consider the recovering of hearing due to noise pauses.
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