An active noise control device called active noise absorber (ANA), which is based upon damped, resonant filters is developed and demonstrated. It is similar to structural positive position feedback (PPF) control, with two exceptions: 1) acoustic transducers (microphone and speaker) can not be truly colocated, and 2) the acoustic actuator (loudspeaker) has significant dynamics. The speaker dynamics can affect performance and stability and must be compensated. While acoustic modal control approaches are typically not sought, there are a number of applications where controlling a few room modes is adequate. A model of a duct with speakers at each end is developed and used to demonstrate the control method, including the impact of the speaker dynamics. An all-pass filter is used to provide phase compensation and improve controller performance. A companion experimental study validated the simulation result and demonstrated nearly 10 dB of control in the first duct mode.
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ASME 2003 International Mechanical Engineering Congress and Exposition
November 15–21, 2003
Washington, DC, USA
Conference Sponsors:
- Noise Control and Acoustics Division
ISBN:
0-7918-3723-8
PROCEEDINGS PAPER
Active Noise Control Using Phase-Compensated, Damped Resonant Filters Available to Purchase
Jesse B. Bisnette,
Jesse B. Bisnette
University of Pittsburgh, Pittsburgh, PA
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Jeffrey S. Vipperman,
Jeffrey S. Vipperman
University of Pittsburgh, Pittsburgh, PA
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Daniel D. Budny
Daniel D. Budny
University of Pittsburgh, Pittsburgh, PA
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Jesse B. Bisnette
University of Pittsburgh, Pittsburgh, PA
Jeffrey S. Vipperman
University of Pittsburgh, Pittsburgh, PA
Daniel D. Budny
University of Pittsburgh, Pittsburgh, PA
Paper No:
IMECE2003-41831, pp. 169-179; 11 pages
Published Online:
May 12, 2008
Citation
Bisnette, JB, Vipperman, JS, & Budny, DD. "Active Noise Control Using Phase-Compensated, Damped Resonant Filters." Proceedings of the ASME 2003 International Mechanical Engineering Congress and Exposition. Noise Control and Acoustics. Washington, DC, USA. November 15–21, 2003. pp. 169-179. ASME. https://doi.org/10.1115/IMECE2003-41831
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