The four basic perceptual characteristics of sound are pitch, loudness, quality and fidelity. Pitch is the perception of a high or low sound, loudness is the intensity of a sound, phase is the increase and decrease in pressure cycle any single vibration, loudness is a quality defined as the intensity of sound energy as it comes in contact with an eardrum or other surface.
"The four basic perceptual characteristics of sound are pitch, loudness, quality and fidelity. Pitch is the perception of a high or low sound, loudness is the intensity of a sound, phase is the increase and decrease in pressure cycle any single vibration, loudness is a quality defined as the intensity of sound energy as it comes in contact with an eardrum or other surface."
Electromagnetic waves do not require a medium in order to transport their energy. Mechanical waves are waves that require a medium in order to transport their energy from one location to another. ... Sound is a mechanical wave and cannot travel through a vacuum.
