The Effect of Geometrical and Material Modification of Sound Diffusers on Their Acoustic Parameters
Open accessAbstract
Sound diffusers, in particular those based on changes in the phase of the reflected wave (Schroeder diffusers), have recently gained greatly in popularity in acoustics as an effective means to eliminate defects and improve the acoustic performance of interiors.This paper draws attention to a possibility of shaping acoustic parameters of sound diffusers and fundamental errors made in applying diffusers.Also, an often neglected issue of sound absorption by diffusers has been tackled.The presented results of laboratory measurements indicate a great significance of the diffusers' rigidity and geometry on their absorption coefficient at low frequencies.The effect of arrangement of elements on the diffusion coefficient was analysed for two types of elements based on the prime number N = 7.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Most current papers on acoustic panel development only cover analytical problem formulation or final design measurement in engineering reports.
“Most of the current papers on acoustic panel development only cover the analytical problem formulation [7,8] or the final design measurement in the engineering reports [9,10,11].”
From Sustainable Perforated Acoustic Wooden Panels Designed Using Third-Degree-of-Freedom Bezier Curves with Broadband Sound Absorption Coefficients (2023) · cites this paper as [10]
The Abstract (page not available in our copy) says the paper reports laboratory measurements of sound diffusers, so it can serve as an example of measurement-based acoustic-panel research. The paper does not establish that most current papers cover only analytical formulations or final-design measurements, nor does it characterize those measurements as engineering reports. (LLM, conf=0.76)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
No references could be resolved yet.
Research works printed but not linked: 2
- Mommertz E., Vorländer M. (1995), Measurement of scattering coe?cients of surfaces in the reverberation chamber and in the free field, Proc. 15th ICA, II, 577-580.
- Pilch A., Rubacha J., Kamisiński T. (2011), Diffusion of sound wave at large incident angles [abstract], XVIII Conference on Acoustic and Biomedical Engineering.
Cited by
Sorted by citations
Chojnacki, B., Schynol, K., Halek, M., & Muniak, A. (2023) · Materials · doi:10.3390/ma16186089 · Cited by 6 · see citing works
- Authors
- Pilch, A., & Kamisiński, T.
- Affiliations
- AGH University of Krakow (PL)
- Venue
- Archives of Acoustics
- Published
- 2011-01-01
- Volume
- 36
- Issue
- 4
- ISSN
- 0137-5075 (ISSN-L)
- OpenAlex
- W2001715336
- Cited by
- 25
- References
- 0
- Citations by year
- 2025: 2 · 2024: 4 · 2023: 3 · 2022: 3 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 2 · 2012: 6
- FWCI
- 1.14
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Archives of Acoustics (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Acoustic Wave Phenomena Research
- Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
- Physical Sciences › Engineering › Automotive Engineering › Vehicle Noise and Vibration Control
- Keywords
- acoustic diffusers, Schroeder diffuser, sound absorption coefficient, diffusion coefficient, diffuser geometry, low-frequency sound absorption, room acoustics
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
