Insufficient Thinning

Vocal Science Principle

Insufficient vocal fold thinning — the vocal folds fail to thin adequately in the upper register, causing difficulty with high notes.

Detection criteria:

When F0 is high but H1-H2 remains elevated, it indicates the CT (cricothyroid) muscle is not sufficiently active, and the vocal folds have not thinned appropriately for the pitch.

Justin's Note

CT 肌肉活动不足，声带在高音区未能适当变薄