Results 271 to 280 of about 35,202 (339)
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MagBackdoor: Beware of Your Loudspeaker as A Backdoor For Magnetic Injection Attacks
IEEE Symposium on Security and Privacy, 2023An audio system containing loudspeakers and microphones is the fundamental hardware for voice-enabled devices, enabling voice interaction with mobile applications and smart homes.
Tiantian Liu +7 more
semanticscholar +1 more source
Experimental evidences of nonlinear programmable electroacoustic loudspeaker
Building Acoustics, 2023A two degrees-of-freedom system coupling an acoustical mode of a closed tube to an electroacoustic loudspeaker is considered. A model-inversion technique is presented to digitally program the impedance of the loudspeaker for reaching a targeted nonlinear
C. da Silveira Zanin +5 more
semanticscholar +1 more source
An iterative approach to optimize loudspeaker placement for multi-zone sound field reproduction.
Journal of the Acoustical Society of America, 2021Various array patterns, such as circular, linear, and arc-shaped arrays, have been used in multi-zone sound field reproduction, but most of them are based on empirical rather than judicious selection.
Min Zhu, Sipei Zhao
semanticscholar +1 more source
A spherical expansion for audio sounds generated by a circular parametric array loudspeaker.
Journal of the Acoustical Society of America, 2020The existing non-paraxial expression of audio sounds generated by a parametric array loudspeaker (pal) is hard to calculate due to the fivefold integral in it.
Jiaxin Zhong, R. Kirby, X. Qiu
semanticscholar +1 more source
Coupled vibro-acoustic modeling of a dielectric elastomer loudspeaker.
Journal of the Acoustical Society of America, 2020Dielectric elastomer membranes are soft electro-active materials capable of large deformations. When inflated over a cavity, the membrane radiates sound and can therefore be used as a loudspeaker.
E. Garnell, O. Doaré, C. Rouby
semanticscholar +1 more source
Loudspeaker mounting frame, loudspeaker and cabinet comprising a loudspeaker
The Journal of the Acoustical Society of America, 2008A loudspeaker mounting frame (1) for an electronic appliance has a central opening for receiving a loudspeaker membrane (24), and a plurality of through holes (11) surrounding said central opening for receiving fixing means (25). The through holes (11) are tapered so as to accommodate the fixing means (25) in varying orientations.
Cornelius Sperle +2 more
openaire +2 more sources
Horn loudspeaker and loudspeaker systems
The Journal of the Acoustical Society of America, 2004A horn loudspeaker comprises: a horn (22) having a throat (26) and a mouth (30); a primary electro-acoustic driver (24) mounted at or adjacent the throat of the horn and directed generally along the horn; and at least one secondary electro-acoustic driver (32T, 32B, 32L, 32R) mounted part-way along the horn and directed generally across the horn.
Oliver B. Wright +2 more
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Loudspeaker system with stackable loudspeaker units
The Journal of the Acoustical Society of America, 2002A loudspeaker system includes at least two loudspeaker units. Each loudspeaker unit includes at least one loudspeaker mechanism mounted on a loudspeaker enclosure. The loudspeaker enclosure includes an outer cabinet body having an open front side, a closed rear side, opposed lateral walls, and opposed top and bottom walls, and an inner baffle frame ...
Waterson Chen, Chin-Lung Lin
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Magnetic circuit for loudspeaker and loudspeaker comprising it
The Journal of the Acoustical Society of America, 2007A magnetic circuit comprises a yoke (10) wherein the bottom section (10b) of the yoke (10) is thicker than a cylinder outer peripheral section (10a). This magnetic circuit is constituted of the yoke, a magnet (2) joined to the bottom section of this yoke, and a top plate (3) joined to the top of the magnet to form a magnetic gap between the top plate ...
Kazuyoshi Umemura +3 more
openaire +2 more sources
ACS Applied Materials and Interfaces, 2019
Closed-box loudspeaker systems (CBLSSs) are compact and simple air-suspension loudspeaker systems, and their low-frequency responses are determined by two fundamental parameters: resonance frequency and total damping.
Ji Hoon Kim +7 more
semanticscholar +1 more source
Closed-box loudspeaker systems (CBLSSs) are compact and simple air-suspension loudspeaker systems, and their low-frequency responses are determined by two fundamental parameters: resonance frequency and total damping.
Ji Hoon Kim +7 more
semanticscholar +1 more source