Electroglottograph

An electroglottograph is a diagnostic device that measures electrical signals generated by vocal cord movement during breathing and speech. Clinicians use it to evaluate vocal cord function, assess voice disorders, and study laryngeal mechanics, particularly in patients with dysphonia or other speech-related conditions.

These devices are typically regulated as medical instruments, often requiring compliance with standards for electrical safety and performance accuracy. They may be supplied as standalone units or integrated into voice analysis systems, depending on clinical workflow needs and jurisdiction-specific requirements.