Frequently Asked Questions

What is ASSR?

An auditory steady-state response (ASSR) is an electrophysiological response that is evoked by a periodically repeated (rapid) auditory stimulus.

An ASSR typically uses frequency specific stimuli (0.5, 1, 2, 4 kHz) with the goal of creating an estimated audiogram. In other words, it is a test used for performing a threshold assessment.

What is ABR?

The Auditory Brainstem Response is an Evoked Potential that originates at the auditory nerve (Cranial Nerve VIII).

This test is used to assess the auditory system’s function from the cochlea through the brainstem.

What is ECochG?

Electrocochleography (ECochG) is a measure of the electrical potentials of the cochlea. Typically, the measurement is characterized by the stimulus onset (baseline), the response of the cochlea to the stimulus (summating potential - SP), and response to the synchronous firing of nerve fibers (action potential - AP).

What is eABR?

An electrical Auditory Brainstem Response (eABR) is a measurement of the ABR using an electrical stimulus. Instead of a traditional acoustic stimulus the cochlear implant (CI) or auditory brainstem implant (ABI) provides the stimulus that evokes the ABR.

Science made smarter
Science made smarter is not just a vision. It’s a brand promise that communicates bravery and leadership and sets us apart from others in the hearing healthcare industry.

"Our clinical study on infants and toddlers found that the Eclipse ASSR was faster and produced lower thresholds than our best ABR protocol."

Yvonne S. Sininger
Ph.D. Emeritus Professor in Residence, UCLA

"The Eclipse has the largest number of clinically-relevant features of any AEP device today. The platform is an excellent blend of parameter flexibility and user-friendliness."

Todd B. Sauter - (Stockphoto)
Audiology Associates of Worceste Massachusetts

"In 2005 we started to use the Interacoustics Eclipse EP-25 which as a turning point for us. A very user-friendly interface, fast and reliable equipment."

Marcelo Ribeiro de Toledo Piza
MD, MSc, Brazil

Didn’t find what you were looking for?

If you’re looking for more information on how to use our products or want to know more about them, please contact one of our local sales offices.

Search guides

Need technical help? Download and run TeamViewer for live assistance.


The latest advancements in diagnostic audiology and balance presented by our internationally respected experts.

Shop online

Browse the webshop’s audiological supplies and stock up on products from the best brands of the industry.
Want to know more about our products or arrange a demonstration? Contact an Interacoustics sales office, call +45-6371-3555, or find a distributor.
Features and/or functions may not be available for all countries or all areas and product specifications are subject to change without prior notification.
Copyright © 2020 Interacoustics A/S. All rights reserved. Privacy policy