The human voice

THE VOICE:

- The voice is the sound produced in a person's larynx and uttered through the mouth, as speech or song.
- The timbre is a quality of sound that allows you to recognise a type of voice or instrument.
- It is the man's oldest instrument.
- When a group of people or a person sing without instrumental accompaniment, called a capella.

THE VOCAL TRACT:

- Breathing:

It is the process of bringing the air to the lungs and then expelling it. It has three parts:
 
   *Inhalation:  It consists of taking air through the nose and bring it to the lungs, through the trachea.
   *Retention: In between inhalation and exhalation, air is kept in the lungs.
   *Exhalation: It consists of expelling the air in the lungs through the trachea and finally through the mouth.

- Voice production:

The pressure of the air leaving the lungs causes the vocal cords to vibrate. The greater the force of air moving through them, the higher the intensity of the sound produced, producing volume. The greater the tension applied to the vocal cords, the higher or lower the pitch of the sound.

- Resonators:

They amplify and strengthening the sound.