Adaptive Audio Equalization of Rooms Based on a Technique of Transparent Insertion of Acoustic Probe Signals

Ferreira AJS, Leite A, Pinto F, Rocha AF. Adaptive Audio Equalization of Rooms Based on a Technique of Transparent Insertion of Acoustic Probe Signals. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6738. Available from: https://aes.org/publications/elibrary-page/?id=13542

@inproceedings{Ferreira2006_13542,
  author = {Ferreira, Aníbal J. S. and Leite, António and Pinto, Francisco and Rocha, Ariel F.},
  title = {{Adaptive Audio Equalization of Rooms Based on a Technique of Transparent Insertion of Acoustic Probe Signals}},
  booktitle = {AES Convention 120},
  note = {Paper 6738},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13542}
}

TY  - CPAPER
TI  - Adaptive Audio Equalization of Rooms Based on a Technique of Transparent Insertion of Acoustic Probe Signals
AU  - Ferreira, Aníbal J. S.
AU  - Leite, António
AU  - Pinto, Francisco
AU  - Rocha, Ariel F.
T2  - AES Convention 120
M1  - Paper 6738
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13542
PB  - Audio Engineering Society
LA  - en
AB  - This paper presents an enhanced method performing real time adaptive equalization of room acoustics in the frequency domain. The method obtains the frequency response of the room by means of transparent insertion of a certain number of acoustic probe signals into the main audio spectrum. The opportunities for the insertion of tones are identified by means of a spectral analysis of the audio signal based on a psychoacoustic model of frequency masking. This enhanced version of the adaptive equalizer will be explained as well as its real time implementation on a TMS320C6713 DSP based platform. Results of the acoustic tests will be discussed and conclusions about global performance will be presented.
ER  -