Recently, an original long lost manuscript resurfaced having been discovered in an ancient bookshop in the back waters of the southern states.
Ventriloquism – How The Voice Is Formed
<!– /* Font Definitions */ @font-face {font-family:”Cambria Math”; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:1; mso-generic-font-family:roman; mso-font-format:other; mso-font-pitch:variable; mso-font-signature:0 0 0 0 0 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:”"; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:”Times New Roman”,”serif”; mso-fareast-font-family:”Times New Roman”; mso-fareast-language:EN-US;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; font-size:10.0pt; mso-ansi-font-size:10.0pt; mso-bidi-font-size:10.0pt;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} –> There are also various cavities in the head and cheekbones which connect with the back part of the throat, or pharynx, and serve as a kind of sounding board for the tone. This is the reason the voice is changed from its usual resonant quality when a person has a cold. All these cavities are covered by a sensitive membrane which, when swollen and inflamed, diminish the space of the cavities, thus altering the character of the tone.
Of course the pitch is regulated by the tension of the vocal cords. The tighter they are stretched the more rapidly they vibrate and the higher and more shrill the sound; and, per con¬tra, .the more they are relaxed, the slower the rate of vibration and the lower the pitch. The different positions of the cords are determined entirely by muscular actions under the control of the will. In the ordinary act of respiration, the air passes through the larynx and vocal tubes without a sound, because they are relaxed and at rest and their relations to each other are not therefore favorable to tonal production.
The quality of the voice depends on the struc¬ture of the larynx and the size and form of the vocal tube. The ventriloquist alters the natural quality of his voice by dilating or contracting the mouth; by contracting the passage between the back part of the throat and the mouth so as to separate them into almost distinct chambers or by widening the opening so as to throw them into one, this being done by means of the soft palate; and by altering the form of the cavity of the mouth by means of different positions of the tongue.