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. Previously we have proposed a simplified method for acoustic feedback path modeling and neutralization (FBPMN) during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Here we introduce an intuition based variable step-size (VSS) parameter, for LMS algorithm of FBPMN filter. This VSS is motivated from the fact that the error signal of FBPMN filter contains a disturbance-component that is decreasing in nature. 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.
| Original language | English |
|---|---|
| Title of host publication | 2010 IEEE International 53rd Midwest Symposium on Circuits and Systems, MWSCAS 2010 |
| Pages | 1073-1076 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - Sep 20 2010 |
| Event | 53rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2010 - Seattle, WA, United States Duration: Aug 1 2010 → Aug 4 2010 |
Publication series
| Name | Midwest Symposium on Circuits and Systems |
|---|
Conference
| Conference | 53rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2010 |
|---|---|
| Country | United States |
| City | Seattle, WA |
| Period | 8/1/10 → 8/4/10 |
Fingerprint
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Variable Step-size based online acoustic feedback neutralization in multiple-channel ANC systems. / Akhtar, Muhammad Tahir; Mitsuhashi, Wataru.
2010 IEEE International 53rd Midwest Symposium on Circuits and Systems, MWSCAS 2010. 2010. p. 1073-1076 5548834 (Midwest Symposium on Circuits and Systems).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Variable Step-size based online acoustic feedback neutralization in multiple-channel ANC systems
AU - Akhtar, Muhammad Tahir
AU - Mitsuhashi, Wataru
PY - 2010/9/20
Y1 - 2010/9/20
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. Previously we have proposed a simplified method for acoustic feedback path modeling and neutralization (FBPMN) during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Here we introduce an intuition based variable step-size (VSS) parameter, for LMS algorithm of FBPMN filter. This VSS is motivated from the fact that the error signal of FBPMN filter contains a disturbance-component that is decreasing in nature. 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.
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. Previously we have proposed a simplified method for acoustic feedback path modeling and neutralization (FBPMN) during the online operation of multichannel ANC systems. The computational complexity of the proposed method is lower than the existing method. Here we introduce an intuition based variable step-size (VSS) parameter, for LMS algorithm of FBPMN filter. This VSS is motivated from the fact that the error signal of FBPMN filter contains a disturbance-component that is decreasing in nature. 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.
UR - http://www.scopus.com/inward/record.url?scp=77956604373&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956604373&partnerID=8YFLogxK
U2 - 10.1109/MWSCAS.2010.5548834
DO - 10.1109/MWSCAS.2010.5548834
M3 - Conference contribution
AN - SCOPUS:77956604373
SN - 9781424477715
T3 - Midwest Symposium on Circuits and Systems
SP - 1073
EP - 1076
BT - 2010 IEEE International 53rd Midwest Symposium on Circuits and Systems, MWSCAS 2010
ER -