CROS and BICROS hearing aid verification

The CROS (Contralateral Routing of Offside Signals) is a hearing aid (HA) system that combines components mounted at both ears, and allows the individuals with a unilateral hearing loss to hear the auditory stimulus received on the side of their hearing loss in the contralateral ear. The major categories of CROS hearing aid systems which may be placed on the outside of the head at ear level are CROS, and BiCROS (Bilateral CROS) systems. They use either a cable or a wireless connection to send the audio signal from the poorer ear to the better ear.

The CROS hearing aid fitting can be used for those patients with unilateral hearing loss, where the poorer ear could not benefit from a traditional hearing aid.

The BiCROS system can be used for those patients who have a hearing loss also in the better ear.

Hereafter we describe the procedure for verification of fitting of a CROS and BiCROS hearing aid which can easily be performed with the Inventis Trumpet REM system.