QUESTION 2: WHAT ARE THE TWO MAIN TYPES OF VOCAL FREQUENCIES?
QUESTION 3: WHY IS IT IMPORTANT TO MASTER VOCAL FREQUENCIES IN PUBLIC SPEAKING?
QUESTION 4: WHAT CAN BE ACHIEVED BY USING LOWER FREQUENCIES IN COMMUNICATION?
QUESTION 5: WHAT CAN BE ACHIEVED BY USING HIGHER FREQUENCIES IN COMMUNICATION?
QUESTION 6: HOW CAN THE VOCAL FREQUENCY RANGE BE EXPANDED?
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