The Switched Convolution Reverberator

Lee KS, Abel JS, Välimäki V, Berners DP. The Switched Convolution Reverberator. In: AES Convention 127. Audio Engineering Society; 2009. Paper 7927. Available from: https://aes.org/publications/elibrary-page/?id=15122

@inproceedings{Lee2009_15122,
  author = {Lee, Keun-Sup and Abel, Jonathan S. and Välimäki, Vesa and Berners, David P.},
  title = {{The Switched Convolution Reverberator}},
  booktitle = {AES Convention 127},
  note = {Paper 7927},
  year = {2009},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15122}
}

TY  - CPAPER
TI  - The Switched Convolution Reverberator
AU  - Lee, Keun-Sup
AU  - Abel, Jonathan S.
AU  - Välimäki, Vesa
AU  - Berners, David P.
T2  - AES Convention 127
M1  - Paper 7927
PY  - 2009
DA  - 2009/10/06
UR  - https://aes.org/publications/elibrary-page/?id=15122
PB  - Audio Engineering Society
LA  - en
AB  - An artificial reverberator having low memory and small computational cost, appropriate for mobile devices, is presented. The reverberator consists of an equalized comb filter driving a convolution with a short noise sequence. The reverberator equalization and decay rate are controlled by low-order IIR filters, and the echo density is that of the noise sequence. While this structure is efficient and readily generates high echo densities, if a fixed noise sequence is used, the reverberator has an unwanted periodicity at the comb filter delay length. To overcome this difficulty, the noise sequence is regularly updated or "switched". Several structures for updating the noise sequence, including a leaky integrator sensitive to the signal crest factor, and a multi-band architecture, are described.
ER  -