Directional Analysis of Early Reflections in Small Shoebox-Shaped Listening Rooms

Pawlak A, Lee H, Mäkivirta A, Lund T. Directional Analysis of Early Reflections in Small Shoebox-Shaped Listening Rooms. In: AES Convention 154. Audio Engineering Society; 2023. Paper 83. Available from: https://aes.org/publications/elibrary-page/?id=22108

@inproceedings{Pawlak2023_22108,
  author = {Pawlak, Alan and Lee, Hyunkook and Mäkivirta, Aki and Lund, Thomas},
  title = {{Directional Analysis of Early Reflections in Small Shoebox-Shaped Listening Rooms}},
  booktitle = {AES Convention 154},
  note = {Paper 83},
  year = {2023},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22108}
}

TY  - CPAPER
TI  - Directional Analysis of Early Reflections in Small Shoebox-Shaped Listening Rooms
AU  - Pawlak, Alan
AU  - Lee, Hyunkook
AU  - Mäkivirta, Aki
AU  - Lund, Thomas
T2  - AES Convention 154
M1  - Paper 83
PY  - 2023
DA  - 2023/05/06
UR  - https://aes.org/publications/elibrary-page/?id=22108
PB  - Audio Engineering Society
LA  - en
AB  - Critical listening rooms aim at providing an acoustically controlled environment for the accurate evaluation and production of audio content. In this study, the dimensions of existing ITU-R BS 1116-compliant critical listening rooms are surveyed using data obtained from existing literature and publications. To further understand the early reflection patterns in ITU-R BS 1116-compliant critical listening rooms, this study simulates first- and second-order reflections using the Image Source Method (ISM) for six different source positions and one listener position. Employing the agglomerative clustering (hierarchical) algorithm, the first and second-order reflections are analysed separately and visualised on the Mollweide projection. The results indicate a general agreement in the first-order reflection patterns across the rooms using six clusters, while the second-order reflection patterns are more dispersed within clusters. This study presents a general summary of the directional patterns of early reflections in critical listening rooms, and identifies regions that require further investigation to fully comprehend their perceptual significance.
ER  -