Measurements of acoustics properties for level-dependent ear-muffs
The aim of this paper is to present methods of acoustic measurements of level-dependent ear-muffs with an electronic sound restoration system switched off and on, according to EN 352-4. Measurements of sound attenuation and H, M, L criterion levels were carried out for a model of a...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2003-01-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/441 |
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| _version_ | 1849318557664411648 |
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| author | D. Puto E. Kotarbińska |
| author_facet | D. Puto E. Kotarbińska |
| author_sort | D. Puto |
| collection | DOAJ |
| description | The aim of this paper is to present methods of acoustic
measurements of level-dependent ear-muffs with an electronic sound restoration
system switched off and on, according to EN 352-4. Measurements of sound
attenuation and H, M, L criterion levels were carried out for a model of a
level-dependent earmuff. The acoustic properties of test sites, sound field
requirements and test signals are discussed. Measurements of sound attenuation
were carried out in a chamber for testing hearing protectors. The chamber
fulfilled the requirements of PN-EN 24869-1. Measurements of the H, M, L
criterion levels were carried out in a reverberation room where the sound field
of the test site complied with the requirements specified in ISO/DIS 11904-1.
Both the chamber for testing hearing protectors and the reverberation room are
the part of the laboratory of noise in the Central Institute for Labour
Protection in Warsaw, Poland. |
| format | Article |
| id | doaj-art-5d52051dc7124e1488d00499d2ade763 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2003-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-5d52051dc7124e1488d00499d2ade7632025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2003-01-01281Measurements of acoustics properties for level-dependent ear-muffsD. Puto0E. Kotarbińska1Central Institute for Labour ProtectionCentral Institute for Labour ProtectionThe aim of this paper is to present methods of acoustic measurements of level-dependent ear-muffs with an electronic sound restoration system switched off and on, according to EN 352-4. Measurements of sound attenuation and H, M, L criterion levels were carried out for a model of a level-dependent earmuff. The acoustic properties of test sites, sound field requirements and test signals are discussed. Measurements of sound attenuation were carried out in a chamber for testing hearing protectors. The chamber fulfilled the requirements of PN-EN 24869-1. Measurements of the H, M, L criterion levels were carried out in a reverberation room where the sound field of the test site complied with the requirements specified in ISO/DIS 11904-1. Both the chamber for testing hearing protectors and the reverberation room are the part of the laboratory of noise in the Central Institute for Labour Protection in Warsaw, Poland. https://acoustics.ippt.pan.pl/index.php/aa/article/view/441 |
| spellingShingle | D. Puto E. Kotarbińska Measurements of acoustics properties for level-dependent ear-muffs Archives of Acoustics |
| title | Measurements of acoustics properties for level-dependent ear-muffs |
| title_full | Measurements of acoustics properties for level-dependent ear-muffs |
| title_fullStr | Measurements of acoustics properties for level-dependent ear-muffs |
| title_full_unstemmed | Measurements of acoustics properties for level-dependent ear-muffs |
| title_short | Measurements of acoustics properties for level-dependent ear-muffs |
| title_sort | measurements of acoustics properties for level dependent ear muffs |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/441 |
| work_keys_str_mv | AT dputo measurementsofacousticspropertiesforleveldependentearmuffs AT ekotarbinska measurementsofacousticspropertiesforleveldependentearmuffs |