Results 61 to 70 of about 34,890 (263)
Sound source and loudspeaker base angle dependency of phantom image elevation effect
, 2017 Early studies found that, when identical signals were presented from two loudspeakers equidistant from the listener, the resulting phantom image was elevated in the median plane and the degree of the elevation increased with the loudspeaker base angle ...
Hyunkook Lee
semanticscholar +1 more source
A Modification of Artificial Bee Colony Algorithm Applied to Loudspeaker Design Problem
IEEE transactions on magnetics, 2014 The design of electromagnetic devices is generally multimodal, multidimensional, and constrained. Its simulation-based feature makes traditional optimization algorithms unsuitable to use; whereas metaheuristic approaches are good choices for tackling ...
Xiu Zhang, Xin Zhang, S. Ho, Weinong Fu
semanticscholar +1 more source
Building a loudspeaker with two CD
Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2011 Para motivar a los alumnos y captar su atención, se ha diseñado una experiencia para fabricar un altavoz a partir de materiales cotidianos, tales como CD-DVD, bobinas de cobre y un imán.
Capell Arqués, Celestí
doaj
Constant Directivity Loudspeaker Beamforming [PDF]
Loudspeaker array beamforming is a common signal processing technique for acoustic directivity control and robust audio reproduction. Unlike their microphone counterpart, loudspeaker constraints are often heterogeneous due to arrayed transducers with varying operating ranges in frequency, acoustic-electrical sensitivity, efficiency, and directivity ...
arxiv +1 more source
Journal of the Acoustical Society of America, 2014 Since the mid 1990s, acoustics research has been undertaken relating to the sound zone problem-using loudspeakers to deliver a region of high sound pressure while simultaneously creating an area where the sound is suppressed-in order to facilitate ...
Philip Coleman +5 more
semanticscholar +1 more source
Acta AcusticaVirtual acoustics enables hearing research and audiology in ecologically relevant and realistic acoustic environments, while offering experimental control and reproducibility of classical psychoacoustics and speech intelligibility tests.
Schütze Julia +3 more
doaj +1 more source
Multipath-enabled private audio with noise [PDF]
arXiv, 2018 We address the problem of privately communicating audio messages to multiple listeners in a reverberant room using a set of loudspeakers. We propose two methods based on emitting noise. In the first method, the loudspeakers emit noise signals that are appropriately filtered so that after echoing along multiple paths in the room, they sum up and ...
arxiv
Power Parameters and Efficiency of Class B Audio Amplifiers in Real-World Scenario [PDF]
Radioengineering, 2017 Consumer audio amplifiers are intended to op¬erate with various loudspeaker loads, i.e. the load imped¬ance profile of the audio amplifier is a priori unknown.
H. Zhivomirov, N. Kostov
doaj
Comparison of Acceptable Noise Level Generated Using Different Transducers and Response Modes
Neural Plasticity, 2018 The acceptable noise level (ANL) was defined by subtracting the background noise level (BNL) from the most comfortable listening level (MCL) (ANL = MCL − BNL).
Liang Xia +7 more
doaj +1 more source
Applied SciencesThe directional loudspeaker array has various applications due to its capability to direct sound generation towards the target listener and reduce noise pollution.
Yankai Zhang, Hongjian Wei, Qiaoxi Zhu
doaj +1 more source