In such cases an effort is made to increase the tone by pinching the larynx.
But this compresses the vocal cords, increases the resistance to the passage of the breath, and brings rigidities that prevent proper resonance.

The true way is to increase the wind supply, as does the organist.
CORRECT BREATHING ILLUSTRATED The following figures show the outline of correct breathing.

The inner abdominal line shows the limit of expiration; the outer line shows the limit of full inspiration.
Figure 9 shows the limit of full expiration and inspiration of the male, side view.
Figure 10 shows the lateral expansion of the ribs in both expiration and inspiration, front view of the male.
The expansion cannot be great at this part of the chest, as the side is so short a distance from the backbone to which the ribs are attached.

The movement of the ribs in front is much greater, as Fig.

9 shows.
Figure 11 shows the front expansion and contraction in the breathing of the female, side view.
Figure 12 shows the lateral expansion of the chest in the female, front view.
These diagrams are made from photographs, and thus true to life.