Speed of sound
Sound wave is a compression wave, speed transmitted vibration depends on
the state of the gas molecules in the air.The temperature change, the humidity,
sound waves, is fast at higher temperatures.V speed of sound waves traveling
through the air of t the dry [m / s] is represented as shown below, regardless
of the frequency and pressure.
Beat
The beat, when the sound of two the height of the sound is slightly different
is ringing, it is a phenomenon that the intensity of the sound can be heard
at a period equivalent to the difference between the frequency of the fundamental
tone of each.Frequency of the beat is different from the difference in
frequency f1, f2 of the two sounds of the original,
Expression is represented.
