Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller
This paper presents an acoustic impedance control architecture for an electroacoustic absorber combining both feedforward and feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance for direct impedance control. However, inaccuracies in the r...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | Acta Acustica |
| Subjects: | |
| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus220058/aacus220058.html |
| _version_ | 1797703699904069632 |
|---|---|
| author | Volery Maxime Guo Xinxin Lissek Hervé |
| author_facet | Volery Maxime Guo Xinxin Lissek Hervé |
| author_sort | Volery Maxime |
| collection | DOAJ |
| description | This paper presents an acoustic impedance control architecture for an electroacoustic absorber combining both feedforward and feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance for direct impedance control. However, inaccuracies in the required actuator model can lead to a loss of passivity, which can cause unstable behaviour. The feedback contribution allows the absorber to better handle model errors and still achieve an accurate impedance, preserving passivity. Numerical and experimental studies were conducted to compare this new architecture against a state-of-the-art feedforward control method. |
| first_indexed | 2024-03-12T05:09:21Z |
| format | Article |
| id | doaj.art-115d0ea53b874d2f9c7fcd5ac81f4da7 |
| institution | Directory Open Access Journal |
| issn | 2681-4617 |
| language | English |
| last_indexed | 2024-03-12T05:09:21Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj.art-115d0ea53b874d2f9c7fcd5ac81f4da72023-09-03T08:42:43ZengEDP SciencesActa Acustica2681-46172023-01-017210.1051/aacus/2022058aacus220058Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controllerVolery Maximehttps://orcid.org/0000-0001-6410-0615Guo Xinxinhttps://orcid.org/0000-0003-3360-3791Lissek Hervéhttps://orcid.org/0000-0002-0444-0535This paper presents an acoustic impedance control architecture for an electroacoustic absorber combining both feedforward and feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance for direct impedance control. However, inaccuracies in the required actuator model can lead to a loss of passivity, which can cause unstable behaviour. The feedback contribution allows the absorber to better handle model errors and still achieve an accurate impedance, preserving passivity. Numerical and experimental studies were conducted to compare this new architecture against a state-of-the-art feedforward control method.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus220058/aacus220058.htmlactive sound absorptionelectrodynamic loudspeakerfeedback controlfeedforward controlmodel uncertaintypassivitypressure control |
| spellingShingle | Volery Maxime Guo Xinxin Lissek Hervé Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller Acta Acustica active sound absorption electrodynamic loudspeaker feedback control feedforward control model uncertainty passivity pressure control |
| title | Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller |
| title_full | Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller |
| title_fullStr | Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller |
| title_full_unstemmed | Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller |
| title_short | Robust direct acoustic impedance control using two microphones for mixed feedforward-feedback controller |
| title_sort | robust direct acoustic impedance control using two microphones for mixed feedforward feedback controller |
| topic | active sound absorption electrodynamic loudspeaker feedback control feedforward control model uncertainty passivity pressure control |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus220058/aacus220058.html |
| work_keys_str_mv | AT volerymaxime robustdirectacousticimpedancecontrolusingtwomicrophonesformixedfeedforwardfeedbackcontroller AT guoxinxin robustdirectacousticimpedancecontrolusingtwomicrophonesformixedfeedforwardfeedbackcontroller AT lissekherve robustdirectacousticimpedancecontrolusingtwomicrophonesformixedfeedforwardfeedbackcontroller |