Projection of voice is a way to "throw" your voice away from you so it can be heard. To project your voice you need to use correct breathing and good posture. Correct posture requires you to stand straight up and erect, it is NOT slumping or lying down. The correct breathing style IntercostalDiaphragmatic Breathing as it expands your chest capacity.
The process of turning breath into voice starts with breathing air in. The best way to do this is using Intercostal Diaphragmatic Breathing; this is when your intercostal muscles pull your ribs upwards and outwards, your diaphragm descends and thus creating a larger chest capacity. This cause almost a vacuum effect sucking air into your mouth down your pharynx through your larynx and down into the trachea, then into the bronchi and into the lungs. When we breathe out the opposite occurs decreases the chest capacity pushing the air out.
As the breath comes out of the lungs it makes the vocal cords vibrate and the breath pushes the soundwaves out of your mouth. When the vocal cords vibrate creating the fundamental tone. Fundamental tone travels to the resonators and becomes voice.
The amplification of fundamental tone is done in the resonating cavities. The air returning to the lungs comes up the trachea into the larynx. There the vocal cords are drawn together so that the air passing through them causes them to vibrate and make fundamental tone. The resonators amplify the fundamental tone. To get the resonators the soundwave must be supported by breath given forward production, carried forward and the resonators must relax and open. To achieve a good balance you need to have an equal amount of resonance through out the resonators.
The chief resonators give a special tone or note:
Pharyngeal resonance gives...