cjl said:It actually does. However, pretty much all sound is quiet enough so that the speed of sound doesn't change very much for any reasonable volume. Extremely loud sound would travel faster than the "speed of sound" though.
Vorde said:Do you happen to know on what basis the speed of sound as defined is? Is it just the average speed or is it the precise speed of a particular sound.
The speed of sound is the rate at which sound waves travel through a medium, such as air or water. It is approximately 343 meters per second in dry air at 20 degrees Celsius.
The speed of sound varies depending on the medium it is traveling through. In general, sound travels faster in denser mediums and slower in less dense mediums. For example, sound travels faster in water than in air, and faster in steel than in water.
The speed of sound can be affected by temperature, humidity, and air pressure. In general, sound travels faster in warmer temperatures, in higher humidity, and in higher air pressure.
The speed of sound is typically measured using a sonic anemometer, which measures the time it takes for a sound wave to travel a known distance. It can also be calculated using the formula: speed of sound = frequency x wavelength.
The speed of sound is important in many applications, such as in the design of airplanes and other vehicles, in the study of earthquakes and other seismic activity, and in the development of medical imaging techniques. It also has practical uses, such as determining the distance of a lightning strike based on the time delay between seeing the lightning and hearing the thunder.