Abstract
This paper investigates the issue of acoustic feedback in multichannel active noise control (ANC) systems. The presence of acoustic feedback degrades the performance of the ANC systems, and in the worst case the ANC system may become unstable. Here we propose a simplified solution for acoustic feedback modeling and neutralization during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Computer simulations are carried out for a 1 × 2 × 2 system comprising one reference microphone, two secondary loudspeakers and two error microphones. It is demonstrated that the proposed method achieves better performance than the existing method, and at somewhat lower computational complexity.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology |
| Pages | 50-54 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - Dec 1 2008 |
| Externally published | Yes |
| Event | SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology - Tokyo, Japan Duration: Aug 20 2008 → Aug 22 2008 |
Conference
| Conference | SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology |
|---|---|
| Country | Japan |
| City | Tokyo |
| Period | 8/20/08 → 8/22/08 |
Fingerprint
Keywords
- Acoustic feedback
- Adaptive signal processing
- Multichannel active noise control
- Online feedback-path modeling
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Control and Systems Engineering
- Computer Science Applications
Cite this
A simplified method for online acoustic feedback path modeling in multichannel active noise control systems. / Akhtar, M. T.; Abe, M.; Kawamata, M.; Mitsuhashi, W.
Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology. 2008. p. 50-54 4654621.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A simplified method for online acoustic feedback path modeling in multichannel active noise control systems
AU - Akhtar, M. T.
AU - Abe, M.
AU - Kawamata, M.
AU - Mitsuhashi, W.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - This paper investigates the issue of acoustic feedback in multichannel active noise control (ANC) systems. The presence of acoustic feedback degrades the performance of the ANC systems, and in the worst case the ANC system may become unstable. Here we propose a simplified solution for acoustic feedback modeling and neutralization during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Computer simulations are carried out for a 1 × 2 × 2 system comprising one reference microphone, two secondary loudspeakers and two error microphones. It is demonstrated that the proposed method achieves better performance than the existing method, and at somewhat lower computational complexity.
AB - This paper investigates the issue of acoustic feedback in multichannel active noise control (ANC) systems. The presence of acoustic feedback degrades the performance of the ANC systems, and in the worst case the ANC system may become unstable. Here we propose a simplified solution for acoustic feedback modeling and neutralization during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Computer simulations are carried out for a 1 × 2 × 2 system comprising one reference microphone, two secondary loudspeakers and two error microphones. It is demonstrated that the proposed method achieves better performance than the existing method, and at somewhat lower computational complexity.
KW - Acoustic feedback
KW - Adaptive signal processing
KW - Multichannel active noise control
KW - Online feedback-path modeling
UR - http://www.scopus.com/inward/record.url?scp=56749184921&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56749184921&partnerID=8YFLogxK
U2 - 10.1109/SICE.2008.4654621
DO - 10.1109/SICE.2008.4654621
M3 - Conference contribution
AN - SCOPUS:56749184921
SN - 9784907764296
SP - 50
EP - 54
BT - Proceedings of SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology
ER -