PROPAGATION OF SOUND AND FACTORS AFFECTING IT 2.0 PROPAGATION OF SOUND Propagation of sound is the Transmission of Acoustic Energy through a medium via a sound wave. Sound is a sequence of waves of pressure, which propagates through compressible media such as air or water or solid. During their propagation, waves can be reflected,
ULTRASOUND. FIND OUT MORE. Sound can be low-pitched, like the rumble of a large truck, or high-pitched, like a whistle. The pitch of a sound depends on the frequency of its wave. Piano keys produce notes that increase in pitch from the left side of the keyboard to the right. We can hear sounds of different pitches, but there are some sounds we cannot hear. Our ears cannot detect very low-pitched noises, known as infrasound, or very high-pitched noises, called ULTRASOUND.
Does temperature affect the sound of a musical instrument? Chris Rogers, a professor of mechanical engineering at Tufts University, and Jesse Jones, a musical instrument engineer, explain. Temperature can affect the sound of an instrument in a variety of ways, which are different for each instrument. It also influences the abilities of a player. In the case of the violin, for example, warmer weather changes the amount of friction between the bow and the strings, changing the way the bow pulls on each string.