# ang buhay ng isang magsasaka

Topics: Sound, Acoustics, Pitch Pages: 2 (653 words) Published: January 27, 2014
katrina barcelo
"The characteristic of sound by which a shrill sound can be distinguished from a grave sound is known as PITCH."
Pitch of sound depends upon the frequency of sound. The greater the frequency, the higher is the pitch and vice versa. It is the pitch of sounds that enable us to distinguished b/w a sound of man and woman or man and dog. Etc. sound of a woman is shrill due to high pitch. Sound of a dog is grave due to low pitch and low frequency. QUALITY OR TIMBER

"The property of sound by virtue of which we can distinguish between two sounds of the same pitch and the loudness originating from two different musical instruments." The sound produced by two different instruments is usually complex. It is a mixture of several tones. The tone of lowest frequency is called Fundamental frequency and other tones are known as OVERTONES OR HARMONICS. The loudness of sound depends upon the amplitude of vibration. And pitch determined by its fundamental frequency. Two or more sound may have the same loudness and the same pitch but that they may differ in number and relative intensities of overtones. The quality of sound depends upon the wave from of the resultants. Nature has such a great diversity that it is very rare to have some overtones of two persons exactly. So this difference is overtones makes it possible to recognize each sound. This characteristic of sound is called QUALITY. INTENSITY OF SOUND

"The intensity of sound is defined as the amount of energy transmitted per second through unit area held perpendicularly in the direction of sound waves." Intensity of sound = E/t.A
OR
I = E/t.A
Pitch
Pitch = frequency of sound
For example, middle C in equal temperament = 261.6 Hz
Sounds may be generally characterized by pitch, loudness, and quality. The perceived pitch of a sound is just the ear's response to frequency, i.e., for most practical purposes the pitch is just the frequency. The pitch perception of the human ear is understood to operate...