@ARTICLE{Mikulski_Witold_Method_2013,
 author={Mikulski, Witold},
 volume={vol. 38},
 number={No 2},
 journal={Archives of Acoustics},
 pages={177-183},
 howpublished={online},
 year={2013},
 publisher={Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics},
 abstract={Sound absorption coefficient is a commonly used parameter to characterize the acoustic properties of sound absorbing materials. It is defined within the frequency range of 100-5 000 Hz. In the industrial conditions, many appliances radiating acoustic energy of the frequency range of above 5000 Hz are used and at the same time it is known that a noise within the frequency range of 5 000-50 000 Hz can have a harmful effect on people,hence there is a need to define the coefficient in this frequency range. The article presents a proposal for a method of measurement of the sound absorption coefficient of materials in the frequency range from 5 000 Hz to 50 000 Hz. This method is a modification of the reverberation method with the use of interrupted noise.},
 type={Artykuły / Articles},
 title={Method of Determining the Sound Absorbing Coefficient of Materials within the Frequency Range of 5 000–50 000 Hz in a Test Chamber of a Volume of about 2 m3},
 URL={http://www.journals.pan.pl/Content/101515/PDF/04-paper.pdf},
 doi={10.2478/aoa-2013-0020},
 keywords={ultrasonic noise, sound absorption coefficient of materials},
}