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Turning a loudspeaker into an active Helmholtz resonator: Underlying law, principle and design methodology
(2018-10-13)
This paper is concerned with how to turn a moving-coil loudspeaker into an active Helmholtz resonator (AHR): that is, an active noise control loudspeaker used in conjunction with a microphone and a feedback controller to ...
Aspects to be considered while designing loudspeakersAlgunos aspectos a considerar en el diseño de altavoces
(Facultad de Ciencias de la Ingeniería, Univesidad Austral de Chile., 2017)
Modelagem e simulação da dinâmica de alto-falantes em caixas acústicas seladas
(Universidade do Vale do Rio dos Sinos, 2011-03-29)
Loudspeakers are the main item in any high fidelity sound system, and are the main responsible for distortions in sound reproduction. The main reason for that is the presence of nonlinearities in their functioning. Recent ...
Modelagem e simulação da dinâmica de alto-falantes em caixas acústicas seladas
(Universidade do Vale do Rio dos Sinos, 2011-03-29)
Loudspeakers are the main item in any high fidelity sound system, and are the main responsible for distortions in sound reproduction. The main reason for that is the presence of nonlinearities in their functioning. Recent ...
Modeling and Dynamic Analysis of an Electrical Helmholtz Resonator for Active Control of Resonant Noise
(2017-10-01)
This paper describes a theoretical and experimental investigation into an electrical Helmholtz resonator (EHR): that is, an active noise control (ANC) loudspeaker used in conjunction with a microphone and a feedback ...
Directional Landscapes: Using Parametric Loudspeakers for Sound Reproduction in Art
(Taylor and Francis Ltd., 2017-01-01)
As new technologies appear, the expressive palette of creators broadens. Parametric loudspeakers are one of such new technologies that makes it possible to direct sound as though it were a light beam. Since their debut in ...
Fuente sonora omni-direccional
(Revista Mexicana de Física, 2009)
Construção e estudo de uma caixa acústica bookshelf
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia de Controle e AutomaçãoUTFPR, 2018-12-04)
In order to bring the context of DIY (do it yourself) acoustic boxes closer to the brazilian reality, this paper intends to be used as help for a better understanding of this vast and complex subject. Starting off of the ...
Narrowband feedback for narrowband control of resonant and non-resonant vibration
(2016-08-01)
This paper presents a simple feedback methodology that uses second order filters to control narrowband resonant and non-resonant vibration of a structural system. In particular, a single degree-of-freedom system is studied ...