Wide-Area Psychoacoustic Correction for Problematic Room Modes Using Non-Linear Bass Synthesis

Hawksford MO, Hill AJ. Wide-Area Psychoacoustic Correction for Problematic Room Modes Using Non-Linear Bass Synthesis. In: AES Convention 129. Audio Engineering Society; 2010. Paper 8313. Available from: https://aes.org/publications/elibrary-page/?id=15735

@inproceedings{Hawksford2010_15735,
  author = {Hawksford, Malcolm O. and Hill, Adam J.},
  title = {{Wide-Area Psychoacoustic Correction for Problematic Room Modes Using Non-Linear Bass Synthesis}},
  booktitle = {AES Convention 129},
  note = {Paper 8313},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15735}
}

TY  - CPAPER
TI  - Wide-Area Psychoacoustic Correction for Problematic Room Modes Using Non-Linear Bass Synthesis
AU  - Hawksford, Malcolm O.
AU  - Hill, Adam J.
T2  - AES Convention 129
M1  - Paper 8313
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15735
PB  - Audio Engineering Society
LA  - en
AB  - Small room acoustics are characterized by a limited number of dominant low-frequency room modes which result in wide spatio-pressure variations that traditional room-correction systems find elusive to correct over a broad listening area. A psychoacoustic-based methodology is proposed whereby signal components coincident only with problematic modes are filtered and substituted by virtual-bass components to forge an illusion of the suppressed frequencies. A scalable and hierarchical approach is studied using the Chameleon Subwoofer Array (CSA) and subjective evaluation confirms a uniform large-area performance. Bass synthesis exploits parallel nonlinear and phase vocoder generators with outputs blended as a function of transient and steady-state signal content.
ER  -