How to Develop the Carrying Power of the Voice.
Remember to apply the principles of ease, openness and forwardness--they are the prime factors in enabling your voice to be heard at a distance.
Do not gaze at the floor as you talk. This habit not only gives the speaker an amateurish appearance but if the head is hung forward the voice will be directed towards the ground instead of floating out over the audience.
Voice is a series of air vibrations. To strengthen it two things are necessary: more air or breath, and more vibration.
