Results 251 to 260 of about 48,097 (289)

Reverberation time slope ratio

The Journal of the Acoustical Society of America, 2019
T60 Slope Ratio: Symbolically—T60SR6 A proposed standard for condensing six octaves (63 Hz – 2 kHz) of reverberant decay data into a singular-quotient, qualitative score for performance, worship and entertainment facilities. Specifically, a defining metric for scoring and grading the proportional relationship (i.e., ratio) between the longest and ...
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Blind reverberation time estimation by intrinsic modeling of reverberant speech

2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013
The reverberation time (RT) is a very important measure that quantifies the acoustic properties of a room and provides information about the quality and intelligibility of speech recorded in that room. Moreover, information about the RT can be used to improve the performance of automatic speech recognition systems and speech dereverberation algorithms.
Ronen Talmon, Emanuel A. P. Habets
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Reverberation time recommendations for noisy industrial workshops

Journal of Occupational and Environmental Hygiene, 2020
Industrial workshops or any other industrial premises where noisy machines are operated should be as acoustically absorbent as possible. On the other hand, acoustic treatments are expensive (especially when correcting existing premises), messy, and not always compatible with the implemented production processes.
Nicolas, Trompette, Laurent, Legal
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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 Formulae Reconsidered

The Journal of the Acoustical Society of America, 1972
The widely used reverberation time formula due to Eyring was derived on the assumption of step-wise drops in the energy level of a diffuse sound field. The argument, besides being difficult to follow, was not justified from the statistical notion of a diffuse field.
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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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Holographic measurement of reverberation time

Applied Acoustics, 1979
Abstract A system employing the radio frequency holographic method for the measurement of the reverberation time of an acoustic chamber is proposed. This system has the advantage of supplying visible information on the diminishing intensity of the acoustic wave.
H.K. Dikshit, K.D. Dikshit
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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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Automatic Reverberation Time Recorder

IETE Journal of Research, 1956
AbstractThe method of measurement of reverberation time by tracing decay curves is tedious though accurate. Occasions frequently arise when the need for a quick determination of reverberation time vs. frequency curve is felt. An equipment constructed in the Research Department, All India Radio, which can plot the reverberation time vs.
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Predicting reverberation times in a simulated classroom

The Journal of the Acoustical Society of America, 2000
By varying the sound-absorption treatments in a simulated classroom, experimental results were compared with analytical and computer predictions of reverberation time. Analytical predictions were made with different absorption exponents, which are the result of different weighting procedures involving room surface areas and the sound-absorption ...
Bistafa, S. R., Bradley, J. S.
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