Only the colder temperature (!) lets decrease the speed of With altitude above sea level, because the density of airĭecrease with height. It is a wrong assumption that the speed of sound decreases This is not a good answer, because they forgot to tell us the important temperature,Īnd the given atmospheric pressure "at sea level" makes really no sense. Here is the answer of Google : "Speed of sound at sea level = 340.29 m/s". !category-topic/websearch/unexpected-search-results/N5JMdZOkeuQ Google is not correct (look at the following link) We always need the specification of the temperature. The average air pressure at sea level is 101325 Pa. Violinist or a clarinetist feels good, no noticeable changes in speed of At the air pressure conditions in which a In the air pressure range between 98 and 104 kPa virtually noĬhanges of the speed of sound arise. Changing temperature does it.īecause the air pressure can be entered into the computer, there is noĬontradiction. Instruments in concert halls or in a rooms. The temperature indication, however, is absolutelyĬhanging of the air pressure does not change the sound of musical The words "sound pressure at sea level" are incorrect and misleading in theĬase of "speed of sound". − but not with air pressure (atmospheric pressure). The speed of sound changes clearly with temperature, a little bit with humidity Notice for musicians and technicians (not for professors of physics): You will see the program but the function will not work. The used browser does not support JavaScript. Don't forget, this is a site for sound designers. The air pressure is entered here anyway, it could be that you have to involve a
Even seemingly small percentage changes may cause serious listening This dependence also applies really good to air, in goodĪpproximation and can be regarded as an ideal gas.Įnvironmental effects change the speed of sound and the absorption of sound Gas the speed of sound depends only on its temperature and is independent Upon the amplitude, frequency, or wavelength of the sound. The speed of sound in air is determined by the air itself and is not dependent The standard air pressure (atmospheric pressure) is 101325 Pa = 101.325 kPa or 1013.25 hectopascal. In the region between the air pressures 95 and 104 kPa there is no noticeable changing of the speed of sound c. The calculator is valid over the temperature range 0 to 30☌ (273.15 to 303.15 K) and over the pressure range 67, 1992", and a mole fraction of carbon dioxide of 0.0004. 2510, 1993", with saturation vapor pressure taken from Richard S. This calculator is to determine the speed of sound in humid or moist air (water vapor) according to OwenĬramer, "JASA, 93, p. Speed of sound in humid air ( Relative humidity ).It is not dependent upon the sound amplitude, frequency or wavelength. The speed of sound in air is determined by the air itself.
Google is not correct (look at the following link) is the answer of Google: "Speed of sound at sea level = 340.29 m/s".This is no good answer, because they forgot to tell us the temperature,and the atmospheric pressure "at sea level" has no sense. rho is the density Ï and p is the sound pressure.Notice: The speed of sound is alike on a mountain top as well as at sea level with the same air temperature. The air pressureand the density of air (air density) are proportional to each other at the same temperature.It applies always p / Ï = constant. The speed of sound c depends on the temperature of air and not on the air pressure!The humidity of air has some negligible effect on the speed of sound. The air pressure and the air density are proportional to each other at the same temperature. The temperature is important not the air pressure. This will give you more accurate results. The accepted value of speed of sound in air is determined by the equation vT= (331.5 + 0.607T) m/s for the value T, put the temperature in.
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