As a sounds of the human voice any musical composition has a special sound brightness and saturation. It’s known that some people have mainly “steel” shades in sound-producing and the other have more softly ones. These differences in sounds are due to the number and intensity of overtones. It’s not often you meet two people with identical voices.
Coloring the sound with overtones is called a timbre. A timbre helps us to obtain maximum sound expressiveness; with its help, people single out individual components, and use a wonderful opportunity to play on contrasts. That is why every musician is a dramatist in the world of sounds.
Timbral colorings of sounds differ in quantity and strength of overtones, which color the sounding besides the fundamental tone. The more overtones fill the main tone the more pleasant to hear a sound timbre.
The fundamental tone in charge of this pitch is the main, while the others are overtones. There are also harmonic overtones. In the boundless ocean of musical art such name have a secondary «high» sounds, which are similar in frequency with the main tone. Sometimes these frequencies do not match. In this case we talk about non-harmonic overtone. In short, that is a very big difference in sounding of the main and the secondary sounds.
Depending on which of the sound’s overtones stands out more, one or another timbre of the sound is obtained. Difference in timbre of musical instruments and voices occurs through their ability to amplify sound.
Variety of the character of humans voice sounds is explained by human’s ability to change positioning of the movable parts of the resonators. The fundamental tone and the overtones appear due to vocal cords. The resonator here is the mouth cavity. It might be also a nasopharynx. With a change of sound producing variations, the timbre of the voice changes too. The resonator is an empty space bounded by walls. This is a cavity of a certain shape and size. Some overtones get higher through the resonator and the other get lower. Therefore, we hear loud sounds. Similar situation occurs while playing consonants, which consist of the main tone and the overtones, which changing in resonating cavities. In this way, sonorous and noisy consonants appear.