WEEK TWO
SOUND ,CHARACTERISTICS AND QUALITY
DEFINITION OF SOUND :
The early man learnt about nature by what he saw around him; the singing of birds, sound of brooks and water falls, the loud sound from thunder, the sighing of wind through reeds of grasses and leaves, and the cries of animals to mention a few.
However, Sound is a vibration of an object.
TYPES OF SOUND.
There basically two(2) types of sound namely:
- Musical sound: this has to do with music, any sound produced musically is musical sound and can also known as Regular sound. Examples are singing, clapping and drumming.
- Non-musical sound : this type of sound has been said to be noise and not musical. It is generally called irregular sound.
QUALITIES OF SOUND
The quality of a person are those things that would distinguish him from other person. Some of the qualities of a person may be :height, complexion and size.
There are also qualities that distinguish music from other sounds:
- Pitch (b) Duration (c) Intensity (d) Tone Colour
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Pitch is the degree of highness or lowness that we hear in a sound.
Duration is the length of time for which a sound lasts. It could be short or long.
Intensity (dynamics) is the degree of loudness or softness of sounds. Loudness is related to the amplitude of the vibration that produces the sound e.g the harder a drum is struck, the louder the sound, or the harder the key of a piano is struck, the louder the is its sound.
Tone Colour is the quality that distinguishes the sound of instrument from one another. the sound of violin is different from that of human voice, or flute from the piano even when they are playing the same tone at the same dynamic level.
Exercises
- Define Pitch . …………………………………………………………………………………………….
- Explain the difference between Duration and Tone color