How To Achieve Your Ideal Singing or Speaking Voice! Have you always wanted a deeper, more assertive, resonant, and pleasing speaking or singing voice, but did not know how? Learn how to develop your own unique voice by learning first the basic principles of how the voice works. This manual will help you to discover the easy, step by step methods and secrets leading speech pathologists and voice instructors the world over have used to help their clients achieve their most desired voice! About the Author: Marlo Hendrix is a certified speech pathologist and a recognized expert in the field of voice. She has authored many research papers on the subject of voice resonance and is a featured speaker on the lecture circuit.