Simulating an Asymmetrically Saturated Nonlinearity Using an LNLNL Cascade

Lee KS, Abel JS. Simulating an Asymmetrically Saturated Nonlinearity Using an LNLNL Cascade. In: AES Convention 133. Audio Engineering Society; 2012. Paper 8697. Available from: https://aes.org/publications/elibrary-page/?id=16440

@inproceedings{Lee2012_16440,
  author = {Lee, Keun Sup and Abel, Jonathan S.},
  title = {{Simulating an Asymmetrically Saturated Nonlinearity Using an LNLNL Cascade}},
  booktitle = {AES Convention 133},
  note = {Paper 8697},
  year = {2012},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16440}
}

TY  - CPAPER
TI  - Simulating an Asymmetrically Saturated Nonlinearity Using an LNLNL Cascade
AU  - Lee, Keun Sup
AU  - Abel, Jonathan S.
T2  - AES Convention 133
M1  - Paper 8697
PY  - 2012
DA  - 2012/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16440
PB  - Audio Engineering Society
LA  - en
AB  - The modeling of a weakly nonlinear system having an asymmetric saturating nonlinearity is considered, and a computationally efficient model is proposed. The nonlinear model is the cascade of linear filters and memoryless nonlinearities, an LNLNL system. The two nonlinearities are upward and downward saturators, limiting, respectively, the amplitude of their input for either positive or negative excursions. In this way, distortion noted in each half an input sinusoid can be separately controlled. This simple model is applied toy simulating the signal chain of the Echoplex EP-4 tape delay, where informal listening tests showed excellent agreement between recorded and simulated program material.
ER  -