Results 261 to 270 of about 45,283 (307)
Some of the next articles are maybe not open access.
The incudo-malleolar joint and sound transmission losses
Hearing Research, 2002The question as to whether the incudo-malleolar joint (IMJ) is mobile or immobile at moderate sound pressure levels (SPLs) is addressed. Referring to the mechanical properties of elastic tissue, we suggest that the IMJ is mobile at any SPL. In order to test this hypothesis, we investigated the dynamics of the IMJ in nine temporal bones by means of ...
Willi, Urban B +2 more
openaire +3 more sources
Effect of Humidity on Sound-Transmission Loss
The Journal of the Acoustical Society of America, 1965A test program was recently instituted by the United States Gypsum Company—Research Center, with the cooperation of the Riverbank Acoustical Laboratories, to determine the effect of ambient humidity on the sound-transmission loss of a double-leaf gypsum-board partition system. The results of this test series were quite explicit.
Allen H. Shiner, Maurice J. Marchello
openaire +1 more source
Sound Transmission Loss of Panels
2015In general, the noise level inside a building or structure is determined by the transmission of air-borne sound from external and internal acoustic sources and by structure-borne sound induced by some mechanical sources.
Anders Nilsson, Bilong Liu
openaire +1 more source
Measurement of Sound-Transmission Loss in the Field
The Journal of the Acoustical Society of America, 1962Field transmission-loss measurements are an important part of architectural-acoustics work. The technical problems of making field measurements differ in many respects from the problems of laboratory measurements. These problems and some solutions are discussed.
W. R. Farrell, B. G. Watters
openaire +1 more source
2019
The transmission of sound through walls and barriers is an extremely important topic for noise control engineers. In this chapter we examine the basic principles of how sound passes through walls. The primary physical characteristics that influence sound transmission through walls are studied, including the importance of mass and how the bending ...
openaire +1 more source
The transmission of sound through walls and barriers is an extremely important topic for noise control engineers. In this chapter we examine the basic principles of how sound passes through walls. The primary physical characteristics that influence sound transmission through walls are studied, including the importance of mass and how the bending ...
openaire +1 more source
Boundary element analyses for sound transmission loss of panels
The Journal of the Acoustical Society of America, 2010The sound transmission characteristics of an aluminum panel and two composite sandwich panels were investigated by using two boundary element analyses. The effect of air loading on the structural behavior of the panels is included in one boundary element analysis, by using a light-fluid approximation for the eigenmode series to evaluate the structural ...
Ran, Zhou, Malcolm J, Crocker
openaire +2 more sources
Selective conditioning for the measurement of sound transmission loss
Journal of Sound and Vibration, 1991Abstract Multiple input modelling techniques have been applied to the measurement of sound pressure and intensity in transmission loss problems. Results indicate that the power radiated by a partition or facade can be meaningfully estimated in the presence of substantial (10–25 dB) background noise levels relative to a primary, multi-sine, excitation.
H. Davies, M.R. Lester, J.R. Morgan
openaire +1 more source
An Investigation into the Variability of Sound Transmission Loss Tests
SAE Technical Paper Series, 2007<div class="htmlview paragraph">In many cases, the results from a sound transmission loss (STL) test can differ from facility to facility. Despite the presence of standardized test specifications such as SAE J1400 [<span class="xref">1</span>], many issues can create variations in the data unique to that particular setup.
Jonathan K. Liu +1 more
openaire +1 more source
Sound Transmission Loss of Panels with Resonant Elements
Acoustical Physics, 2001Various types of resonant elements that can be used for increasing the transmission loss of panels in narrow frequency bands are analyzed. The main physical phenomena determining the transmission loss of sound waves in panels with resonant elements are studied.
B. M. Efimtsov, L. A. Lazarev
openaire +1 more source
INTER-NOISE and NOISE-CON Congress and Conference Proceedings
The performance of building sound insulation is an important parameter for evaluating the quality of construction projects. So far, the sound insulation performance testing of building walls requires the installation of large-dimensioned wall samples in specialized sound insulation laboratories, which is time-consuming and costly. If small-dimensioned
Ziyang WANG +4 more
openaire +1 more source
The performance of building sound insulation is an important parameter for evaluating the quality of construction projects. So far, the sound insulation performance testing of building walls requires the installation of large-dimensioned wall samples in specialized sound insulation laboratories, which is time-consuming and costly. If small-dimensioned
Ziyang WANG +4 more
openaire +1 more source