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Active sound quality control

Abstract

Active control is a potential solution to cope with the steadily increasing requirements for noise reduction in many fields. Cavity noise reduction, as encountered in aircraft cabins and vehicle interiors, are typical examples. More recently, not only noise reduction is pursued, but rather an improvement on the appreciation of the perceived noise by the occupants. The first step towards Active Sound Quality Control is to assess standard controllers' performance, taking human perception into account, e.g. by means of psychoacoustic metrics. A further step involves the design of dedicated control schemes for sound quality improvement. This research project also involves the study of simulation and experimental techniques to aid the design of such vibro-acoustic systems with their embedded controllers, e.g., by allowing numerical or hybrid models of the passive system to be included in the control design scheme, enabling model-based control design and auralization of passive and active solutions. The later is critical for the proposed application as control parameter could be tuned based on the users appreciation of the virtual sound field. In addition, if sound quality equivalent excitation is used, a direct correlation with real-life applications can be drawn. Among the expected outcomes are: the proposition of simulation and experimental techniques to assist the control design, a better understanding of the efficiency of standard active control techniques as perceived by humans, the introduction of novel control techniques with clear sound quality improvement. (AU)

Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE MELO, FABIO XAVIER; RODRIGUES DE OLIVEIRA, LEOPOLDO PISANELLI. Combining classical and component-based TPA for equivalent load identification. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 42, n. 6 MAY 25 2020. Web of Science Citations: 0.
TRINDADE, MARCELO A.; PAGANI, JR., CARLOS C.; OLIVEIRA, LEOPOLDO P. R. Semi-modal active vibration control of plates using discrete piezoelectric modal filters. Journal of Sound and Vibration, v. 351, p. 17-28, SEP 1 2015. Web of Science Citations: 9.
TRINDADE, MARCELO A.; PAGANI, JR., CARLOS C.; OLIVEIRA, LEOPOLDO P. R.; MASSAROPPI, JR., ERNESTO. EFFECT OF PARAMETRIC UNCERTAINTIES ON THE EFFECTIVENESS OF DISCRETE PIEZOELECTRIC SPATIAL MODAL FILTERS. INTERNATIONAL JOURNAL FOR UNCERTAINTY QUANTIFICATION, v. 3, n. 6, p. 523-540, 2013. Web of Science Citations: 2.
DE OLIVEIRA, LEOPOLDO P. R.; DA SILVA, MAIRA M.; SANCHEZ, JAIME A. MOSQUERA; GONCALVES, LUIZ A. M. Loudness Scattering due to Vibro-Acoustic Model Variability. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 34, n. 2, p. 604-611, 2012. Web of Science Citations: 5.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.