Browsing by Subject "Loudspeakers"
Now showing items 1-17 of 17
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Acoustic cancellation of engine noise by fast adaptive IIR filtering
(Elsevier, 1990)
Conference report
Open Access -
Active control of vibrations on flat plates for loudspeakers
(Universitat Politècnica de Catalunya / École Nationale Supérieure de Techniques Avancées, 2009)
Master thesis (pre-Bologna period)
Restricted access - author's decisionDans la recherche de nouveaux modes de diffusion sonore, on peut être amené à utiliser des structures diverses, allant du cone utilisé dans les haut-parleurs classiques à d'autres formes plus spécifiques. Ce stage propose ... -
Análisis eléctrico del altavoz dinámico mediante modelado de anomalías mecánicas de fricción
(2010)
Conference report
Open AccessEl presente trabajo busca caracterizar el efecto de la fricción del conjunto móvil con el polo o el núcleo de la estructura magnética sobre la corriente absorbida por el altavoz, una de las más relevantes anomalías mecánicas ... -
Clustering initialization based on spatial information for speaker diarization of meetings
(2008)
Conference report
Restricted access - publisher's policyThis paper proposes an initialization for an agglomerative system applied to speaker diarization in the meeting environment. The initialization is based on a previous clustering of the temporal sequence generated by the ... -
Design and Implementation of Sound Projector Using a 30-Element Loudspeaker
(Universitat Politècnica de Catalunya, 2009-11-19)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Kungl. Tekniska högskolan. Skolan för elektro- och systemteknikFor many years, the surround sound effect could only be fully experienced by setting up several speakers, which required considerable wiring for installation in a typical room. Digital sound projectors, one of the most ... -
Determinación de la presión sonora radiada por pistones circulares y anillos no planos usando un método numérico simplificado
(Universitat Politècnica de Catalunya. CIMNE, 2014)
Article
Open AccessAunque el estudio de la radiación sonora por membranas y placas no es nuevo, recientemente se ha desarrollado una gran cantidad de investigación sobre el tema para abordar aplicaciones actuales y futuras. Se han publicado ... -
Disseny acústic d'un array d'alta freqüència
(Universitat Politècnica de Catalunya, 2015-10-29)
Bachelor thesis
Restricted access - author's decision -
Estudi d'implementació d'una estructura per a millorar la directivitat d'un altaveu
(Universitat Politècnica de Catalunya, 2015-06-12)
Bachelor thesis
Restricted access - author's decisionSovint, algunes aplicacions en el món del àudio requereixen d’altaveus amb alta directivitat. Avui en dia, però, els altaveus comuns no presenten un comportament directiu per a freqüències baixes. En el present estudi es ... -
Estudi, disseny i control d'una columna d'altaveus
(Universitat Politècnica de Catalunya, 2017-06-10)
Bachelor thesis
Restricted access - author's decisionUna columna d'altaveus emetent a diferents fases té un patró de directivitat, degut a les interferències entre les ones sonores, que depèn de la distància entre altaveus, la directivitat de cada altaveu, les diferències ... -
Experimental study of the vortex generated in a bass-reflex port of a loudspeaker
(Universitat Politècnica de Catalunya, 2015-06-12)
Bachelor thesis
Restricted access - author's decisionA bass-reflex port is an open pipe that connect the volume of the loudspeaker with the surrounding environment. Its role is to accentuate the low frequency range of sound. For some geometries a vortex shedding can be ... -
Experimental visualization study of the velocity flow in the bass-reflex port of a loudspeaker
(Universitat Politècnica de Catalunya, 2015-01-20)
Bachelor thesis
Restricted access - author's decisionA bass-reflex port is an open pipe that connect the volume of the loudspeaker with the surrounding environment. Its role is to accentuate the low frequency range of sound. For some geometries a vortex shedding can be ... -
Improving the location provided by BLE using high frequency tones
(Universitat Politècnica de Catalunya, 2017-01)
Bachelor thesis
Restricted access - confidentiality agreement -
Loudspeaker Rub Fault Detection by Means of a New Nonstationary Procedure Test
(2011)
Conference report
Restricted access - publisher's policyThis paper addresses rub defect loudspeaker detection. The study includes a simulation with a rub model based on classical static coulomb friction added to the loudspeaker nonlinearities parametric model to demonstrate ... -
Numerical study of the vortex generated in a bass-reflex port of a loudspeaker
(Universitat Politècnica de Catalunya, 2015-06)
Bachelor thesis
Restricted access - author's decisionA bass-reflex port is an open pipe that connect the volume of the loudspeaker with the surrounding environment. Its role is to accentuate the low frequency range of sound. For some geometries a vortex shedding can be ... -
Sistema de diagnosi i compensació de fallides en altaveus
(Universitat Politècnica de Catalunya, 2014-01-22)
Bachelor thesis
Restricted access - author's decision -
Sistema de mesura d'acceleròmetres basat en altaveu
(Universitat Politècnica de Catalunya, 2015-05-11)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] The Electronic Engineering Department is developing an accelerometer and, in order to check the reliability of its functionality, it is needed to create a system capable of generating vibrations that will make ... -
Voice coil inter-turn faults modeling and simulation
(2012)
Conference lecture
Restricted access - publisher's policyThe purpose of this paper is to present a new model to study intern-turn short circuit faults in a dynamic loudspeaker. The loudspeaker is modeled by using classical voice coil parametric model attached to a mechanical piston, ...