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.
How Does Music Affect the Brain? Music stimulates various parts of the brain, making it an effective therapeutic or mood-altering tool. Musicâs pitch, rhythm, meter and timbre are processed in various parts of the brain ranging from the prefrontal cortex to the hippocampus to the parietal lobe. Rhythm and pitch are primarily left brain hemisphere functions, while timbre and melody are processed primarily in the right hemisphere.