TY - GEN
T1 - Analysis of the effect of changes in sequence position on the performance of quadratic residue diffuser (QRD) skyline
AU - Suyatno, Suyatno
AU - Prajitno, Gontjang
AU - Rifdah, Dzakirotur
AU - Aulia, Finaa M.
AU - Syamsia, Rahmawati N.
N1 - Publisher Copyright:
© 2023 Author(s).
PY - 2023/5/9
Y1 - 2023/5/9
N2 - Quadratic Residue Diffuser Skyline (SQRD) is an acoustic panel with the principle of working as a diffuser with a specific geometry (uneven), rigid and scatter sounds. SQRD is arranged with a multidimensional QRD pattern. The study aims to analyze the effect of shifting SQRD sequence positions on panels performance with SPL directivity parameters and diffusion coefficients. The SQRD used in this study has a size of N = 11. The shift variations used are symmetry configuration (V0), shift one (V1), to shift five (V5). The scattering frequency used for the analysis is 1600Hz, 2000Hz, 2500Hz, 3150Hz. The results showed that the shift in the position of SQRD sequences did not provide significant changes. This is shown by the pattern of SPL directivity that are almost uniform for all variations, and each variation of the panels used has good diffuser characteristics with a diffusion coefficient value above 0.83.
AB - Quadratic Residue Diffuser Skyline (SQRD) is an acoustic panel with the principle of working as a diffuser with a specific geometry (uneven), rigid and scatter sounds. SQRD is arranged with a multidimensional QRD pattern. The study aims to analyze the effect of shifting SQRD sequence positions on panels performance with SPL directivity parameters and diffusion coefficients. The SQRD used in this study has a size of N = 11. The shift variations used are symmetry configuration (V0), shift one (V1), to shift five (V5). The scattering frequency used for the analysis is 1600Hz, 2000Hz, 2500Hz, 3150Hz. The results showed that the shift in the position of SQRD sequences did not provide significant changes. This is shown by the pattern of SPL directivity that are almost uniform for all variations, and each variation of the panels used has good diffuser characteristics with a diffusion coefficient value above 0.83.
UR - http://www.scopus.com/inward/record.url?scp=85160414838&partnerID=8YFLogxK
U2 - 10.1063/5.0114351
DO - 10.1063/5.0114351
M3 - Conference contribution
AN - SCOPUS:85160414838
T3 - AIP Conference Proceedings
BT - 2nd International Symposium on Physics and Applications 2021
A2 - Asih, Retno
A2 - Nasori, null
A2 - Saifuddin, null
A2 - Haekal, Muhammad
PB - American Institute of Physics Inc.
T2 - 2nd International Symposium on Physics and Applications 2021, ISPA 2021
Y2 - 13 November 2021 through 14 November 2021
ER -