Equipment


Acoustics

Voice range profile with fundamental frequency on x-axis and intensity on y-axis

Acoustic measures can provide objective data on vocal function.

Aerodynamics

Circumferential mask with two transducers to measure lung pressures and laryngeal airflows

Data on lung pressures and laryngeal airflows help to assess physiologic vocal function

Electroglottography

Non-invasive electrodes placed on the neck to measure the changes in vocal fold contact

EGG measures vocal fold contact across time.


Laryngeal Imaging

A high-resolution image of vocal folds on motion using laryngeal endoscopy procedure

Laryngeal endoscopy procedure and stroboscopy technique help to visualize the oral, nasal, and laryngeal structures along with vocal fold motion and function during voicing, breathing, and other vegetative gestures.

Surface Electromyography

Non-invasive round surface electrodes measure the action potentials of oral and pharyngeal muscles while swallowing

The sEMG is a non-invasive technique to investigate muscle activity during the swallow function. This can also be used for biofeedback purposes.

Performing a laryngeal endoscopy on a volunteer

IOPI

IOPI

Iowa Oral Performance Instrument helps to objectively measure the strength and endurance of two articulators - lips and tongue



Page last modified August 23, 2023