Results 1 to 10 of about 35,202 (339)

Total Harmonic Distortion of a Piezoelectric MEMS Loudspeaker in an IEC 60318-4 Coupler Estimation Using Static Measurements and a Nonlinear State Space Model

open access: yesMicromachines, 2021
We propose a method to evaluate the Total Harmonic Distortion generated by a cantilever-based PZT loudspeaker inside an IEC 60318-4 coupler. The model is validated using experimental data of a commercial loudspeaker.
Romain Liechti   +8 more
doaj   +2 more sources

Experimental Characterisation of a Flat Dielectric Elastomer Loudspeaker

open access: yesActuators, 2018
Conventional loudspeakers are often heavy, require substantial design spaces and are hard to integrate into lightweight structures (e.g., panels). To overcome these drawbacks, this paper presents a novel extremely flat loudspeaker which uses dielectric ...
Emiliano Rustighi   +3 more
doaj   +2 more sources

Flexible and transparent piezoelectric loudspeaker

open access: yesnpj Flexible Electronics, 2021
The simple structure of flexible piezoelectric polymers implies promise innumerous applications, such as transparent loudspeakers. In this study, we fabricated and characterized a prototype loudspeaker device.
M. Shehzad, S. Wang, Y. Wang
doaj   +2 more sources

Loudspeaker cabinet design by topology optimization [PDF]

open access: yesScientific Reports, 2023
Using material distribution-based topology optimization, we optimize the bandpass design of a loudspeaker cabinet targeting low frequencies. The objective is to maximize the loudspeaker’s output power for a single frequency as well as a range of ...
Ahmad H. Bokhari   +3 more
doaj   +2 more sources

A LOUDSPEAKER ORCHESTRA FOR CONCERT HALL STUDIES

open access: yesAuditorium Acoustics 2008, 2023
1-4 . These parameters, however, each provide only a single value computed from an impulse response. In concert halls, the impulse responses are often measured with an omnidirectional sound source and microphone. However, such a single source is far from
J. Pätynen, S. Tervo, T. Lokki
semanticscholar   +1 more source

Optimization of Shunted Loudspeaker for Sound Absorption by Fully Exhaustive and Backtracking Algorithm

open access: yesApplied Sciences, 2021
The shunted loudspeaker with a negative impedance converter is a physical system with multiple influencing parameters. In this paper, a fully exhaustive backtracking algorithm was used to optimize these parameters, such as moving mass, total stiffness ...
Zihao Li, Xin Li, Bilong Liu
doaj   +1 more source

Selecting Program Material by Audio Features for Low-Frequency Perceptual Evaluation of Loudspeakers

open access: yesApplied Sciences, 2021
The program material is of great importance for the results of the listening tests on loudspeakers, while the process of how to select the program material remains ambiguous.
Pei Yu   +4 more
doaj   +1 more source

The effect of housing volume of a converting loudspeaker on the output electric power of a loudspeaker-based acoustic energy harvester

open access: yesJournal of Physics: Theories and Applications, 2020
Acoustic energy harvester is a device that converts sound or acoustic energy into electrical energy. Generally, the main components of this instrument are an acoustic transducer and an acoustic resonator.
Ikhsan Setiawan
doaj   +1 more source

The construction and testing of an acoustic energy harvester consisting of a Helmholtz resonator and a loudspeaker

open access: yesJournal of Physics: Theories and Applications, 2020
Sound energy is all around but not properly utilized despite being a source of electricity. This research was conducted to construct and test an acoustic energy harvester consisting of a Helmholtz resonator and a loudspeaker.
Ikhsan Setiawan, Mulaiyinatus Sifa
doaj   +1 more source

Influence of Loudspeaker Configurations and Orientations on Sound Localization [PDF]

open access: yesArchives of Acoustics, 2022
As the virtual reality (VR) market is growing at a fast pace, numerous users and producers are emerging with the hope to navigate VR towards mainstream adoption.
Shu-Nung Yao
doaj   +1 more source

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