Results 1 to 10 of about 38,180 (147)
Applied Sciences (Switzerland), 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 ...
Bilong Liu
exaly +3 more sources
Micromachines, 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 +2 more
exaly +3 more sources
Selecting Program Material by Audio Features for Low-Frequency Perceptual Evaluation of Loudspeakers
Applied 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
Spherical harmonic representation of the observed directional wave front in the time domain [PDF]
JASA Express Letters, 2022 Sound field reproduction algorithms require loudspeaker directivity, which is usually measured at discrete frequencies. A time domain model of loudspeaker directivity benefits broadband applications. This Letter proposes the concept of a directional wave
Jiarui Wang +3 more
doaj +1 more source
Journal 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
Journal 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
Drone Applications Fighting COVID-19 Pandemic—Towards Good Practices
Drones, 2022 Of the recent epidemics, the impact of the COVID-19 pandemic has been particularly severe, not only putting our health at risk, but also negatively affecting our daily lives.
Ágoston Restás
doaj +1 more source
Energies, 2020 This study computationally evaluates the effect of loudspeakers on the in situ electric field in a driver body model exposed to the magnetic field from a wireless power transfer (WPT) system in an electric vehicle (EV), one with a body made of carbon ...
Junqing Lan, Akimasa Hirata
doaj +1 more source
Mechanical Engineering Journal, 2017 This research aims to reduce the second-order distortion due to diaphragm vibration. The quadratic term of the restoring force of nonlinear springs varies in the pulling and compression directions.
Mitsuharu WATANABE +4 more
doaj +1 more source
Influence of Loudspeaker Configurations and Orientations on Sound Localization [PDF]
Archives 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