Perceptually-Motivated Objective Grading of Nonlinear Processing in Virtual-Bass Systems

Oo N, Gan WS, Hawksford MOJ. Perceptually-Motivated Objective Grading of Nonlinear Processing in Virtual-Bass Systems. J Audio Eng Soc. 2011;59(11):804-824. Available from: https://aes.org/publications/elibrary-page/?id=16149

@article{Oo2011_16149,
  author = {Oo, Nay and Gan, Woon-Seng and Hawksford, Malcolm O. J.},
  title = {{Perceptually-Motivated Objective Grading of Nonlinear Processing in Virtual-Bass Systems}},
  journal = {Journal of the Audio Engineering Society},
  volume = {59},
  number = {11},
  pages = {804--824},
  year = {2011},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16149}
}

TY  - JOUR
TI  - Perceptually-Motivated Objective Grading of Nonlinear Processing in Virtual-Bass Systems
AU  - Oo, Nay
AU  - Gan, Woon-Seng
AU  - Hawksford, Malcolm O. J.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 59
IS  - 11
SP  - 804
EP  - 824
PY  - 2011
DA  - 2011/11/06
UR  - https://aes.org/publications/elibrary-page/?id=16149
PB  - Audio Engineering Society
LA  - en
AB  - When size limitations of loudspeakers prevent the reproduction of low-frequency sounds, nonlinear devices can be used to create the illusion of the missing bass. Such virtual bass systems generate harmonics of the missing fundamental. However, they also can generate unwanted intermodulation distortion, which appears to be dependent on the particular audio sample and the selected nonlinearity. A detailed analysis showed that the ideal nonlinearity should not be even-symmetric, and its second derivative should be less than zero on the input interval 0 to 1.
ER  -