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Getting to know your Baha sound processor

Overview of the Bone Conduction Implant

Bone conduction implant (Baha) systems are designed to assist people who have a conductive hearing loss or who have a very significant hearing loss in one ear only.

Baha systems consist of two main components: an externally worn sound processor (1) and a surgically implanted fixture with either a magnet or abutment (2).  The sound is picked up by the microphones on the sound processor, amplified and is transmitted directly to the inner ear (3) through vibration of the bone.  See figure 1 below.

Figure 1 Transmission of sound using the Baha. Baha system detects sounds and sound vibrations pass through bone and into the inner ear.

There are two Cochlear Ltd Baha systems that we currently use:  the Attract and the Connect.  The choice will be influenced by a person’s level of hearing loss and other factors.  Your clinician will help guide you towards which system is best for you.

Baha Attract

The Baha Attract system (figure 2) uses a magnetic connection between the sound processor and the implant. The Baha Attract requires no break in the skin.

Figure 2 Baha Attract that uses a magnetic connection.

Baha Connect

The Baha Connect system (figure 3) uses a small abutment to attach the sound processor to the implant. This allows for a powerful transmission of sound through vibration as the processor has a direct connection through the skin to the bone.

Figure 3 Baha Connect with abutment connecting processor to implant.

Baha sound processors

There are three sound processors available in Cochlear Ltd’s Baha 5 family.  The sound processor that is right for you will depend on your level of sensorineural (nerve) hearing loss. Your clinician will recommend which is most suitable for you.

Baha 5
Suitable for up to 45dB sensorineural hearing loss

Image of Baha 5 sound processor.


Baha 5 Power
Suitable for up to 55dB sensorineural hearing loss

Image of a Baha 5 Power sound processor.


Baha 5 Super power
Suitable for up to 65dB sensorineural hearing loss

Image of Baha 5 Super power sound processor.

Disclaimer This document describes the generally accepted practice at the time of publication only. It is only a summary of clinical knowledge regarding this area. The Royal Victorian Eye and Ear Hospital makes no warranty, express or implied, that the information contained in this document is comprehensive. They accept no responsibility for any consequence arising from inappropriate application of this information.

  • Baha Recipient Information #230
  • Owner: Cochlear Implant Clinic
  • Last Reviewed: August 5, 2020
  • Next Review: August 5, 2023