Results 151 to 160 of about 54,674 (177)
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Model-based virtual room acoustics
The Journal of the Acoustical Society of America, 2001A new procedure for evaluating the impulse response between source and receiver locations in small reverberant rooms is outlined. The modified image method uses the solution of the Laplace transform based formulation for the Sommerfeld integral to determine the strength of image sources and boundary reflections.
Charles Thompson +3 more
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Acoustic Virtual Training for the Blind
Acoustic Ecology Review, 2023Individuals who are blind or visually impaired learn to rely on their sense of hearing to compensate for their lack of vision.Learn- ing to“see” using the ears is difficult, and requires considerable time and experience. Fortunately, training programs for the blind, referred to as Orientation and Mobility (OM), have been widely implemented at ...
Dean Inman, Ken Loge, Aaron Cram
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Acoustic Virtual Reality Systems
2020Virtual reality (VR) is a computer-generated environment for interaction in real time. One important feature of VR is the multimodality of the human-computer interface. Most VR systems were initially developed for 3D vision. In order to achieve the presence and immersion of the user, VR is not complete without the acoustic and haptic dimensions (and ...
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Assessing the Plausibility of Virtual Acoustic Environments
Acta Acustica united with Acustica, 2012Aiming at the perceptual evaluation of virtual acoustic environments (VAEs), ‘plausibility’ is introduced as a quality criterion that can be of value for many applications of virtual realities. We suggest a definition as well as an experimental operationalization for plausibility, referring to the perceived agreement with the listener’s expectation ...
Lindau, Alexander, Weinzierl, Stefan
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Neutral coding of virtual acoustic space
The Journal of the Acoustical Society of America, 1992The spectrum of a free-field sound source is transformed by the head, pinna, and ear canal before reaching the eardrum. Prominent spectral features in the free-field to eardrum transfer function (FETF) vary systematically with changes in sound-source direction.
J. F. Brugge +5 more
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Acoustic Modality in Virtual Reality
2013Sound enhances the sense of realism in the virtual world, gives additional information about the environment, for example engine speed in flight simulators. By means of sonification the information is presented in the form of an abstract sound. Unlike vision, it is not limited to the direction of view, but is present regardless of head orientation.
Matjaž Mihelj, Domen Novak, Samo Begus
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Vocal fatigue in virtual acoustics scenarios
The Journal of the Acoustical Society of America, 2017The overuse of the voice by professional voice users, such as teachers, is known to cause physiological vocal fatigue. Vocal fatigue is used to denote negative vocal adaptation that occurs as a consequence of prolonged voice use or vocal load. This study investigates how self-reported vocal fatigue is related to voice parameters (sound pressure level ...
Pasquale Bottalico +2 more
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Localization in Virtual Acoustic Displays
Presence: Teleoperators and Virtual Environments, 1992This paper discusses the development of a particular spatial display medium, the virtual acoustic display. Although the technology can stand alone, it is envisioned ultimately to be a component of a larger multisensory environment and will no doubt find its greatest utility in that context.
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Virtual reality meets architectural acoustics
The Journal of the Acoustical Society of America, 2017Computer programs for simulation and auralization of sound fields in rooms and of sound transmission in buildings became standard tools for architectural design and consulting. Another field of rapid progress is Virtual Reality—the combination of real-time signal processing with user interaction and multimodal human-machine interfaces.
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Transformation acoustics: virtual pinholes and collimators
The Journal of the Acoustical Society of America, 2012In this invited talk, our preliminary study is presented on a virtual hole and a broadband acoustic collimator, by combination of the concept of complimentary media with transformational acoustics. Such effect is exemplified by a segmental defect in the original cloak, which appears as if a dipole scatterer was under the acoustic imager.
Jun Xu, Yun Jing, Nicholas X. Fang
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