Which of the following is NOT an approach used for resonance treatment options?

• A. Palatal lift
• B. Increased loudness
• C. Intelligibility drills
• D. Visual feedback

Answer: (C)

The correct answer is intelligibility drills, as these focus primarily on enhancing speech clarity and understanding rather than directly addressing issues related to resonance. Resonance treatment seeks to modify how the voice sounds, which is often affected by the balance of airflow through the oral and nasal cavities, and the above approaches—palatal lifts, increased loudness, and visual feedback—are specifically designed to improve resonance.

Palatal lifts can assist individuals with velopharyngeal insufficiency by physically blocking air from escaping into the nasal cavity, thereby improving resonance. Increased loudness can also have a positive impact on resonance by encouraging more effective airflow and vocal fold engagement, potentially leading to a fuller sound. Visual feedback provides a way for individuals to observe their speech patterns and make adjustments in real-time, which can also support resonance improvements.

In contrast, intelligibility drills do not directly modify resonance characteristics but aim to enhance overall speech intelligibility through practice and articulation techniques. This distinction highlights why intelligibility drills do not align with resonance treatment options.