Results 71 to 80 of about 34,890 (263)

ELECTRODYNAMIC LOUDSPEAKER-DRIVEN ACOUSTIC COMPRESSOR

open access: yesActa Polytechnica, 2015
An acoustic compressor is  built  using the acoustic resonator which shape was optimized for a maximum acoustic pressure amplitude and a low-cost compression driver.  Acoustic compressor is built  by installing  a suction port in the resonator wall where
Martin Šoltés, Milan Červenka
doaj   +1 more source

An overview of directivity control methods of the parametric array loudspeaker

open access: yesAPSIPA Transactions on Signal and Information Processing, 2014
A sound reproduction system usually consists of several types of loudspeakers to cater to sophisticated applications. The directivity of a loudspeaker is a measure of its efficiency in sending sounds to a particular direction instead of all directions ...
Chuang Shi, Y. Kajikawa, W. Gan
semanticscholar   +1 more source

Inferring the location of reflecting surfaces exploiting loudspeaker directivity [PDF]

open access: yesarXiv, 2020
Accurate sound field reproduction in rooms is often limited by the lack of knowledge of the room characteristics. Information about the room shape or nearby reflecting boundaries can, in principle, be used to improve the accuracy of the reproduction.
arxiv  

Effect of stimuli, transducers and gender on acoustic change complex

open access: yesAudiology Research, 2012
The objective of this study was to investigate the effect of stimuli, transducers and gender on the latency and amplitude of acoustic change complex (ACC).
Hemanth N. Shetty, Puttabasappa Manjula
doaj   +1 more source

Development of Parametric Loudspeaker

open access: yesIEEE Potentials, 2010
Based on nonlinear acoustic and acoustic signal processing theoretical analyses, we designed and implemented a directional sound projection (or parametric loudspeaker) system, known as the audio beam system (ABS). The prototyping of the parametric loudspeaker consists of three main components: a digital signal processor (DSP), amplifier, and ultrasound
Shi, Chuang, Gan, Woon-Seng
openaire   +4 more sources

A Digital Loudspeaker: Experimental Construction

open access: yesActa Polytechnica, 2006
To verify the principal functionality of a digital loudspeaker the experimental construction of a digital loudspeaker was designed. This system consists of signal processing unit and transducer array.
P. Valoušek
doaj  

Optimization of Architectural Electroacoustics Design for the Interior Mezzanines of Vertical Buildings

open access: yesInternational Journal of Technology, 2018
A science that deals with the transformation of electrical energy into acoustic energy or vice versa, electroacoustic, generates the increased intensity and loudness of sound by mechanical and/or electrical means.
FX Teddy Badai Samodra
doaj   +1 more source

Dataset of head-related transfer functions measured with a circular loudspeaker array

open access: yes, 2014
In this paper, we describe a dataset of head-related transfer functions (HRTFs) measured at the Research Institute of Electrical Communications, Tohoku University.
Kanji Watanabe   +4 more
semanticscholar   +1 more source

Discriminate natural versus loudspeaker emitted speech [PDF]

open access: yesarXiv, 2019
In this work, we address a novel, but potentially emerging, problem of discriminating the natural human voices and those played back by any kind of audio devices in the context of interactions with in-house voice user interface. The tackled problem may find relevant applications in (1) the far-field voice interactions of vocal interfaces such as Amazon
arxiv  

Off-Centre Localisation Performance of Ambisonics and HOA For Large and Small Loudspeaker Array Radii

open access: yes, 2014
Ambisonics and Higher Order Ambisonics (HOA) are scalable spatial audio techniques that attempt to present a sound scene to listeners over as large an area as possible.
Peter Stitt, S. Bertet, M. V. Walstijn
semanticscholar   +1 more source

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