Results 331 to 340 of about 17,399,953 (368)

Optimum Reverberation Time for Auditoriums

The Journal of the Acoustical Society of America, 1930
Up to the present, the acoustics of auditoriums has rested on a purely empirical basis. A more satisfactory situation would be reached if we knew a physical quantity which had some definite value for all rooms, regardless of size, which are considered acoustically good.
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Reverberation time series generation

2009 International Symposium on Ocean Electronics (SYMPOL 2009), 2009
This paper deals with the generation of non-stationary reverberation time series using a reverberation spectrum model. The expected spectra are predicted using a numerical implementation (referred to as the reverberation spectrum model), of a general formulation of Faure, Ol'shevskii, and Middleton as a function of relevant sonar system parameters and ...
R. Pradeepa, Priyanka Saini, V Aparna, V. P. Felix   +3 more
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Uncertainty of in situ low frequency reverberation time measurements from 20 Hz : An empirical study

, 2016
Measuring reverberation time is normally one of the steps within the procedure of determining sound insulation in dwellings where 100 or 50 Hz usually serves as the lower frequency limit.
Fredrik Ljunggren, Rikard Öqvist, C. Simmons   +2 more
semanticscholar   +1 more source

Time reversal of interface reverberation

The Journal of the Acoustical Society of America, 2004
Bottom reverberation can be used as a probe-source of opportunity to construct a time-reversal focus that scans along a rough interface. We present results from a tank experiment at ultrasonic frequencies in which reverberation from a sandy bottom was collected on a 64-element source/receiver array.
Joseph F. Lingevitch, Philippe Roux
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Measurement of Reverberation Time

American Journal of Physics, 1965
A simple experiment to measure the reverberation time of a room is described. The relevant theory is outlined, and typical results are given. The experiment is designed for inclusion in a course of practical work for first-year university students in physics.
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Time reversal focusing of high amplitude sound in a reverberation chamber.

Journal of the Acoustical Society of America, 2018
Time reversal (TR) is a signal processing technique that can be used for intentional sound focusing. While it has been studied in room acoustics, the application of TR to produce a high amplitude focus of sound in a room has not yet been explored.
M. Willardson, B. Anderson, Sarah M. Young, Michael H. Denison, Brian D Patchett   +4 more
semanticscholar   +1 more source

Impact of Background Noise Fluctuation and Reverberation on Response Time in a Speech Reception Task.

Journal of Speech, Language and Hearing Research, 2019
Purpose This study examines the effects of reverberation and noise fluctuation on the response time (RT) to the auditory stimuli in a speech reception task.
N. Prodi, C. Visentin
semanticscholar   +1 more source

‘Reverberation Time’, dreaming and the capacity to dream [PDF]

The International Journal of Psychoanalysis, 2009
In this paper the author suggests that understanding the roots of the subjective sense of time can throw light on the disturbances in psychic time which are found in particular in the more severe pathologies. She introduces the argument that the roots of the development of the sense of time rest on a primitive sense of time she calls 'reverberation ...
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Reverberation Time Measurements in Reverberant Spaces

2008
The goal of this paper is to examine the reverberation time measurements made in small and large reverberant spaces using different measurement methods, namely, the integrated impulse response measured with pink noise, exponential sweep and MLS and the method of recording the response of the room to an impulsive source, e.g.
Jambrošić, Kristian, Domitrović, Hrvoje, Horvat, Marko   +2 more
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Reverberation time prediction software

Applied Acoustics, 1988
Abstract Reverberation time prediction in room acoustics is a subject suitable for the development of a microcomputer software application. Based on two data-bases—one for the actual predictions and one for the building and acoustical materials needed to control the acoustical conditions of a room—such an application, using a conversational ...
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