N2 - The paper presents the verification of a solution to the narrow sound frequency range problem of flat reflective panels. The analytical, numerical and experimental studies concerned flat panels, panels with curved edges and also semicircular elements. There were compared the characteristics of sound reflected from the studied elements in order to verify which panel will provide effective sound reflection and also scattering in the required band of higher frequencies, i.e. above the upper limit frequency. Based on the conducted analyzes, it was found that among some presented solutions to narrow sound frequency range problem, the array composed of panels with curved edges is the most preferred one. Nevertheless, its reflection characteristic does not meet all of the requirements, therefore, it is necessary to search for another solution of canopy which is effective over a wide frequency range. L1 - http://www.czasopisma.pan.pl/Content/101482/PDF/13_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/101482 PY - 2014 IS - No 4 EP - 558 DO - 10.2478/aoa-2014-0059 KW - sound reflection KW - reflective panels KW - sound scattering A1 - Szeląg, Agata A1 - Kamisiński, Tadeusz A1 - Lewińska, Mirosława A1 - Rubacha, Jarosław A1 - Pilch, Adam PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 39 DA - 2014 T1 - The Characteristic of Sound Reflections from Curved Reflective Panels SP - 549 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/101482 T2 - Archives of Acoustics