Aerodynamic evaluation is a noninvasive test that measures how air flows through your voice box during speaking and breathing. It gives your doctor important information about how efficiently your lungs, vocal cords, and mouth work together to produce sound. It's often used to assess voice disorders, breathiness, vocal fatigue, or coordination issues in singers and professional voice users.

This test is quick — typically 10–15 minutes — and done entirely in the office. You’ll wear a small mask over your mouth and nose while performing simple vocal tasks such as sustained vowels or speaking into a microphone. The equipment measures airflow, pressure, and volume. There's no discomfort, no anesthesia, and no recovery time. You can speak and eat usually afterward. The safe test may be repeated periodically to track progress in therapy or recovery from a condition. The results help determine whether your voice issue stems from airflow problems, vocal fold weakness, or inefficient voice use, guiding personalized treatment.