Presentation: The Informed Ear: Integrating Perceptual, Acoustic, and Aerodynamic Measures in Voice Diagnostics

Voice evaluation is used across a range of populations, particularly among individuals with voice disorders in settings such as specialized voice clinics and medical centers. Comprehensive assessment when diagnosing voice disorders requires the integration of perceptual observations and objective measurements in order to fully characterize vocal function and help guide clinical decision making. Auditory-perceptual tools can provide standardized descriptions of voice quality, serving as an important foundation for understanding how a patient’s voice is functioning in everyday communication. Objective acoustic measures can further characterize the sound of the voice. Measures of loudness, pitch range, and overall clarity help quantify vocal output and complement auditory-perceptual impressions. Aerodynamic measures may also be used to examine the physiology underlying voice production by assessing airflow and vocal efficiency, providing additional insight into respiratory–laryngeal coordination. The integration of perceptual, acoustic, and aerodynamic measures allows for a nuanced understanding of vocal function, linking auditory impressions to measurable physiological and acoustic patterns. Although perceptual evaluation provides essential insight, the ear alone can be misleading; combining perceptual observations with objective data supports comparisons to normative data, improves detection of subtle changes in voice quality over time, and helps guide clinical decision-making. 

Brandon Jagdhar, MS, CF-SLP

Brandon Jagdhar, MS, CF-SLP, is a clinical fellow in speech-language pathology specializing in voice, swallowing, and upper airway disorders at the University of Washington Department of Otolaryngology. He earned his Master of Science in Speech-Language Pathology from New York University and completed further graduate training at the Sean Parker Institute for the Voice at Weill Cornell Medicine, where he specialized in the evaluation and treatment of voice, swallowing, and upper airway disorders. He also served as a research assistant in the Aerodigestive Innovations Research (AIR) Lab at Weill Cornell Medicine, focusing on voice and swallowing research. His research interests focus on the aerodynamic assessment of voice and its applications in clinical voice evaluation.

Financial Disclosure: Mr. Jagdhar is employed by the University of Washington Medical Center. He has no other financial disclosures. 

Non-Financial Disclosure:
 Mr. Jagdhar has no non-financial relationships to disclose.