Speakers, singers and stammerers / by Frederick Helmore.

  • Helmore, Frederick.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Speakers, singers and stammerers / by Frederick Helmore. Source: Wellcome Collection.

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    Voce di Petto. The deep chest voice or voce di petto is produced by draw- ing the larynx down into its loivest possible position. This is''done by the combined exertion of the sterno-thyroid muscle (which draws the upper cartilage, thyroid, e, down towards the breast-bone) and of the muscular fibres of the trachea, b, (which drag the lower cartilage, cricoid, c, down- wards towards the lungs.) This is done by the contraction of the longitudinal fibres of the trachea. The transverse fibres are at the same time relaxed, so that the trachea, b, dilates to its greatest expansion. Voce di Gola. The change from the voce di petto to the voce di gola, the throat or middle voice, is effected by relaxing the sterno- thyroid muscle and the longitudinal fibres of the trachea. The larynx then assumes its middle position, and the trachea its viedium size of tube. For these reasons the voice pro- duced in this position is properly named the middle voice. Voce di Testa. In producing the high head notes or voce di testa, the larynx is brought into its highest position. By means of the thyro-hyoideus, e, /, /, the thyroid cartilage, e, is drawn upwards, and at the same time by means of the crico-thyroid muscle the cricoid, c, is drawn up within the thyroid carti- lage. By this action the longitudinal muscles of the trachea, B, are relaxed, while the transverse fibres reduce the size of the tube to its smallest degree of contraction. Chest, Middle, and Bead Voices. Briefly then, there are three positions necessary to the full developement of the voice, the chest, middle, and head voices.