Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions
The present study focuses on the spatial characteristics of the sound pressure level (SPL) generated by a circular piston (a circular-shaped acoustic transducer or loudspeaker). It presents a short theoretical review to aid in understanding the primary sound field characteristic – acoustic pressure...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2025-06-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/4059 |
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| author | Iliyan Yordanov ILIEV Hristo Zhivomirov KARAIVANOV |
| author_facet | Iliyan Yordanov ILIEV Hristo Zhivomirov KARAIVANOV |
| author_sort | Iliyan Yordanov ILIEV |
| collection | DOAJ |
| description | The present study focuses on the spatial characteristics of the sound pressure level (SPL) generated by a circular piston (a circular-shaped acoustic transducer or loudspeaker). It presents a short theoretical review to aid in understanding the primary sound field characteristic – acoustic pressure – as a function of time, frequency, directivity angle, and distance from the source. The study introduces a simple and practical criterion for determining the near- and far-field boundary along the axis of the circular piston as a function of frequency. This criterion is validated through theoretical analysis and experimental measurements. Overall, the results show the influence of circular piston parameters on the SPL spatial distribution. |
| format | Article |
| id | doaj-art-328bfd57dd994df590afa9bd18fc6cd2 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-328bfd57dd994df590afa9bd18fc6cd22025-08-20T03:58:19ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2025-06-0150220921310.24425/aoa.2025.1536573646Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field RegionsIliyan Yordanov ILIEV0https://orcid.org/0009-0004-3338-3949Hristo Zhivomirov KARAIVANOV1https://orcid.org/0000-0002-6157-3772Department of Information Technology, Nikola Vaptsarov Naval AcademyDepartment of Theory of Electrical Engineering and Measurements, Technical University of VarnaThe present study focuses on the spatial characteristics of the sound pressure level (SPL) generated by a circular piston (a circular-shaped acoustic transducer or loudspeaker). It presents a short theoretical review to aid in understanding the primary sound field characteristic – acoustic pressure – as a function of time, frequency, directivity angle, and distance from the source. The study introduces a simple and practical criterion for determining the near- and far-field boundary along the axis of the circular piston as a function of frequency. This criterion is validated through theoretical analysis and experimental measurements. Overall, the results show the influence of circular piston parameters on the SPL spatial distribution.https://acoustics.ippt.pan.pl/index.php/aa/article/view/4059sound pressure level (spl)spatial characteristicsnear-fieldfar-fieldboundariescriterion |
| spellingShingle | Iliyan Yordanov ILIEV Hristo Zhivomirov KARAIVANOV Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions Archives of Acoustics sound pressure level (spl) spatial characteristics near-field far-field boundaries criterion |
| title | Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions |
| title_full | Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions |
| title_fullStr | Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions |
| title_full_unstemmed | Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions |
| title_short | Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions |
| title_sort | mapping sound pressure levels a novel approach to determining near field and far field regions |
| topic | sound pressure level (spl) spatial characteristics near-field far-field boundaries criterion |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/4059 |
| work_keys_str_mv | AT iliyanyordanoviliev mappingsoundpressurelevelsanovelapproachtodeterminingnearfieldandfarfieldregions AT hristozhivomirovkaraivanov mappingsoundpressurelevelsanovelapproachtodeterminingnearfieldandfarfieldregions |