When your child speaks, their vocal cords vibrate as air passes through them. These vibrations create your voice. Voice problems may affect your child’s pitch (how high or low their voice is), loudness, and the quality of their voice (e.g., breathy, rough, strained).
Resonance problems affect the way the voice is shaped by your child’s throat, mouth, and nose (e.g., too much or too little air moving through their nose).