Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 040003 |
| Fachzeitschrift | Proceedings of Meetings on Acoustics |
| Jahrgang | 18 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 2012 |
| Veranstaltung | 164th Meeting of the Acoustical Society of America 2012 - Kansas City, MO, USA / Vereinigte Staaten Dauer: 22 Okt. 2012 → 26 Okt. 2012 |
Abstract
This paper presents a method to design optimal feedback controllers for active noise control. It also shows the main problem of in-ear headphones, namely, interpersonal variances, and its possible solution. These variances make the design of stable feedback controllers with good noise attenuation difficult. To solve this problem we measured the secondary paths of a few test persons and divided these transfer functions into their minimum-phase and their allpass part using the complex cepstrum. In this context we show that the allpass part is almost constant. Thus, it is possible to generate an optimal controller for a given disturbance using the internal model control technique. After that the interpersonal variances will be partly compensated by a mean inverse minimum-phase transfer function. The result is a stable controller with a good noise attenuation for all test persons.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Akustik und Ultraschall
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in: Proceedings of Meetings on Acoustics, Jahrgang 18, Nr. 1, 040003, 2012.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Design of a feedback controller for active noise control with in-ear headphones
AU - Bruhnken, Christoph
AU - Priese, Sylvia
AU - Foudhaili, Hatem
AU - Peissig, Jürgen
AU - Reithmeier, Eduard
PY - 2012
Y1 - 2012
N2 - This paper presents a method to design optimal feedback controllers for active noise control. It also shows the main problem of in-ear headphones, namely, interpersonal variances, and its possible solution. These variances make the design of stable feedback controllers with good noise attenuation difficult. To solve this problem we measured the secondary paths of a few test persons and divided these transfer functions into their minimum-phase and their allpass part using the complex cepstrum. In this context we show that the allpass part is almost constant. Thus, it is possible to generate an optimal controller for a given disturbance using the internal model control technique. After that the interpersonal variances will be partly compensated by a mean inverse minimum-phase transfer function. The result is a stable controller with a good noise attenuation for all test persons.
AB - This paper presents a method to design optimal feedback controllers for active noise control. It also shows the main problem of in-ear headphones, namely, interpersonal variances, and its possible solution. These variances make the design of stable feedback controllers with good noise attenuation difficult. To solve this problem we measured the secondary paths of a few test persons and divided these transfer functions into their minimum-phase and their allpass part using the complex cepstrum. In this context we show that the allpass part is almost constant. Thus, it is possible to generate an optimal controller for a given disturbance using the internal model control technique. After that the interpersonal variances will be partly compensated by a mean inverse minimum-phase transfer function. The result is a stable controller with a good noise attenuation for all test persons.
UR - http://www.scopus.com/inward/record.url?scp=84878993270&partnerID=8YFLogxK
U2 - 10.1121/1.4792244
DO - 10.1121/1.4792244
M3 - Conference article
AN - SCOPUS:84878993270
VL - 18
JO - Proceedings of Meetings on Acoustics
JF - Proceedings of Meetings on Acoustics
SN - 1939-800X
IS - 1
M1 - 040003
T2 - 164th Meeting of the Acoustical Society of America 2012
Y2 - 22 October 2012 through 26 October 2012
ER -