Vocal tract – resonators and articulators: The nose, pharynx, and mouth amplify and modify sound, allowing it to take on the distinctive qualities of voice
The way that voice is produced is analogous to the way that sound is produced by a trombone. The trombone player produces sound at the mouthpiece of the instrument with his lips vibrating from air that passes from the mouth. The vibration within the mouthpiece produces sound, which is then altered or “shaped” as it passes throughout the instrument. As the slide of the trombone is changed, the sound of the musical instrument is similarly changed