Improvements to Binary Amplitude Diffusers

Angus JAS, Gehring GA, Payne-Johnson EC. Improvements to Binary Amplitude Diffusers. In: AES Convention 122. Audio Engineering Society; 2007. Paper 7143. Available from: https://aes.org/publications/elibrary-page/?id=14128

@inproceedings{Angus2007_14128,
  author = {Angus, Jamie A. S. and Gehring, Gillian A. and Payne-Johnson, Elizabeth C.},
  title = {{Improvements to Binary Amplitude Diffusers}},
  booktitle = {AES Convention 122},
  note = {Paper 7143},
  year = {2007},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14128}
}

TY  - CPAPER
TI  - Improvements to Binary Amplitude Diffusers
AU  - Angus, Jamie A. S.
AU  - Gehring, Gillian A.
AU  - Payne-Johnson, Elizabeth C.
T2  - AES Convention 122
M1  - Paper 7143
PY  - 2007
DA  - 2007/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14128
PB  - Audio Engineering Society
LA  - en
AB  - Improved forms of diffusion structures based on absorption reflection gratings are presented. The theory, design, advantages and limitations of these structures are discussed and their performance presented. Two methods of improving performance are suggested. The first structure is based on diffusion limited aggregation, which models non-regular fractal growth. The second structure was a panel with square absorption patches of a variable size that was determined by an m-sequence. Of the two, the second structure performed best. These are improved diffusing structures that take up less space than phase reflecting ones. These techniques add additional materials to the acoustic designer's armoury, for tackling real acoustic designs that have physical and practical, as well as theoretical, constraints.
ER  -