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.
Madeline Knutson, MS, CCC-SLP
Madeline Knutson, MS, CCC-SLP is a voice and upper airway specialized Speech-Language Pathologist at the University of Washington Department of Otolaryngology. She holds a master's degree in Medical Speech-Language Pathology from the University of Washington and completed a full-time internship at the University of Wisconsin Voice Center. She is the program director of Voice Lab, providing acoustic and aerodynamic testing for clinical and research purposes. Her research focuses on voice disorders and sensorimotor integration of speech.
Financial Disclosure: Ms. Knutson is employed by the University of Washington Medical Center. She has no other financial disclosures.
Non-Financial Disclosure: Ms. Knutson has no non-financial relationships to disclose.