Does the speed of sound depend on the loudness?

Answer 1

The answer is: No! In an ideal gas, which air can be considered, the speed of sound is given by:- c= √(γ(p/ρ)) where γ is the abiabatic index, p is the pressure and ρ is the density. and p= ρRT/M where R is the ideal gas constant, M is the Molar mass and T is the absolute temperature. From his equation, if temperature and mass are constant -, one can see that p is proportional to ρTherefore if atmospheric pressure is doubled so is the density Hence p/ ρ is constant. Therefore atmospheric pressure does not affect the speed of sound. However, increase in temperature will lead to an increase in speed. At high altitudes, the temperature is significantly lower, and hence the speed of sound is lower.

Answer 2

Notice for musicians and technicians (not for physics professors):

The speed of sound changes clearly with temperature, a little bit with humidity − but not with air pressure (atmospheric pressure).

The words "sound pressure at sea level" are incorrect and misleading. The temperature indication, however, is absolutely necessary. The changing of atmospheric pressure does not change the sound of Musical Instruments in a concert hall or in a room.

Answer 3

No, really not on the loudness. The speed of sound is dependent on the

temperature, but not on the air pressure.

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If the speed of sound depended on the loudness, bands and orchestras

would be impossible. The sound of the louder instruments would reach

you before the sound from the softer instruments. If they all played on

the same beat down there on the stage, then by the time the sound of

the band reached you, it would be all smeared out.

Answer 4

Direct Answer:

The pressure has no effect on the speed of sound in a gas. For air particularly, the speed of sound within the pressure and temperature range of human experience depends almost solely on temperature.

Similar statements are not true for liquids or solids. It stops being true for gasses when pressure and temperature are near the point that the gas will liquify.

More explanation follows.

The static air pressure p_ and the density ρ of air (air density) are proportional at the same temperature. The ratio p_ / ρ is always constant, on a high mountain or even on sea level altitude.

That means, the ratio p_ / ρ is always constant on a high mountain, and even at "sea level". The static atmospheric pressure p_ and the density of air ρ go always together. The ratio stays constant.

When calculating the speed of sound, forget the atmospheric pressure, but look accurately at the very important temperature. The speed of sound varies with altitude (height) only because of the changing temperature there.

Answer 5

The answer is: No!In an ideal gas, which air can be considered, the speed of sound is given by

c = √ (γ(p/ρ)) where γ is the abiabatic index, p is the pressure and ρ is the density and p = ρ R T / M

where R is the ideal gas constant, M is the Molar mass and T is the absolute temperature.

From his equation, if temperature and mass are constant. One can see that p is proportional to ρ.

Therefore if atmospheric pressure is doubled so is the density.

Hence p/ ρ is constant.

Therefore atmospheric pressure does not affect the speed of sound.

However, increase in temperature will lead to an increase in speed.

At high altitudes, the temperature is significantly lower, and hence the speed of sound is lower.

Answer 6

The speed of sound in air is independent of pressure.
The speed of soundis a function of temperature.

Humidity has a small effect on the speed of sound.

Answer 7

The speed of sound changes with temperature.

Answer 8

Lower the temperature ,higher is the speed of sound, because at lower temperatures, molecules collide more often, giving the sound wave more chances to move around rapidly.

Answer 9

No it does not.