What does the acronym CROS stand for in hearing-aid technology?

What does the acronym CROS stand for in hearing-aid technology?

• A. Contralateral Routing of Signal
• B. Centralized Routing of Signal
• C. Contralateral Reversing of Signal
• D. Cochlear Removal Opportunity

Answer: (A)

For unilateral hearing loss, CROS stands for Contralateral Routing of Signal. In this setup, a microphone placed on the poorer ear captures sound from the environment and wires or wirelessly transmits it to a receiver on the better ear. The word contralateral means the signal is sent to the opposite side, and routing describes directing that sound to the other ear. The result is that sounds from the deaf side are heard by the functioning ear, improving awareness and speech understanding in noise. If the good ear also has significant loss, a BiCROS arrangement might be used, combining amplification on both sides, but the fundamental idea of CROS is simply sending the signal from the poor ear to the better ear.

For unilateral hearing loss, CROS stands for Contralateral Routing of Signal. In this setup, a microphone placed on the poorer ear captures sound from the environment and wires or wirelessly transmits it to a receiver on the better ear. The word contralateral means the signal is sent to the opposite side, and routing describes directing that sound to the other ear. The result is that sounds from the deaf side are heard by the functioning ear, improving awareness and speech understanding in noise. If the good ear also has significant loss, a BiCROS arrangement might be used, combining amplification on both sides, but the fundamental idea of CROS is simply sending the signal from the poor ear to the better ear.