Search Results - P. ROGOWSKI

Measurements of SPL's in sound emission from some wind instruments during training sessions of music students show all in excess of LAmax 110 dB and reach LAmax 132 dB in some cases. Long time average spectra in 1/3-octave bands and cumulative distribution functions show that e.g. sound pressur...

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Sound pressure levels in insert headphones used by young users of CC and CD players were measured in 421 cases. In 137 of these cases short selections of music were recorded and analysed. The results show SPLs in excess of what is considered as a safe sound pressure level.

Sound pressure levels and exposures in discotheques and youth clubs and during training sessions of music students were measured and analysed. Effects of exposure in the form of permanent and temporary threshold shift were determined in the samples of young discotheque attendants and in music studen...

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Sounds of selected percussion instruments played in individual training sessions of students-percussion players were recorded and analysed. In statistical signal analysis the "impulsiveness" in terms of Lmax-Leq and in terms of kurtosis, as an alternative measure were determined. Signal re...

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Resting hearing thresholds were measured in 107 children in 7-10 years of age category, from primary schools in Warsaw. The children were recruited regardless of the priority of these in which problems with hearing acuity were observed or these in which such problems might have been e...

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Gap detection thresholds in 1/3-octave white noise centred at 4 kHz were determined in young musicians with normal hearing preserved and with very high frequency sloping hearing loss. The thresholds were determined in the control group of 20 with normal hearing, i.e. flat audiogram up to 16 kHz, and...

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In a number of reports it has been observed that a prolonged exposure to music at sound pressure levels exceeding 100 dB leads to substantial temporary threshold shifts TTS2, reaching 60-80 dB in the range of high frequencies. Cumulative effects of such exposures result in acoustic trauma, affecting...

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This article presents a stand for the investigation of the perception of auditory danger signals which are masked by simulating industrial noise. The test stand enables the generation of signals with specified parameters and the control of the course of an experiment. It also enables the processing...

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