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Cochlear Nucleus® Freedom BTE

List of required parts

Nucleus Freedom speech processor

Nucleus Freedom standard size controller

MicroLink Freedom

Pre-Fitting

Enable the auto sensitivity control (ASC) and use an audio 

mixing ratio of 1:1 for the dedicated FM program. Keep

the same pre-processing strategies (e. g. ADRO or BEAM)

as used in the default program.

Fitting with the user

1. Turn all equipment Off.

2. Remove the Freedom battery rack by pulling it out of the

controller.

3. Insert three 675 batteries designed for use with cochlear

implants into the MicroLink Freedom battery rack.

4. Plug the MicroLink Freedom into the controller.

5. Press the select button to power up the speech processor.

6. The Freedom processor will automatically detect the

presence of the MicroLink Freedom. The recipient will hear

the environment through the processor microphone and

the FM combined.

7. Test the patient’s speech recognition in quiet at normal

sensitivity with the CI alone and then through the wireless

FM system only (out of range of the processor micro-

phone). Performance should be similar between these two

conditions.

8. When FM is not in use, press both sides of the increase/

decrease button to toggle back to M only. This will resume

normal processor microphone function. To re-engage the

FM, toggle with the button until “EA” flashes on the display

and the M remains active.

9. Evaluate FM benefit as well as the appropriateness of FM

settings through speech-recognition assessment in the

clinic and standardized questionnaires completed by the

recipient, family members and teachers.

Recommendations

To avoid interference, the following channels are recommen-

ded to be used with the MicroLink Freedom

N Band: N09, N12, N13, N16, N17, N18, N52, N57, N61, N62,

N64, N65, N68, N73, N76

H Band: H06, H07, H16, H17, H18, H19, H20, H47, H48, H57,

H59, H77, H78, H79, H85, H86, H87, H88, H89, H90

The MicroLink Freedom can be programmed with the FM

SuccessWare. Insert the Freedom BTE processor with the

MicroLink Freedom attached into the FM programming

interface. Make sure the processor has good batteries and an

FM (EA) program is selected. Instead of inserting the MicroLink

Freedom into the BTE speech processor, programming can also

be carried out with the MicroLink Freedom test adaptor.

Listening check

Attach the Cochlear monitoring headphones to the 

receptacle in the bottom of the MicroLink Freedom.

Turn the system On by pressing the select button on the

Nucleus Freedom. Ensure that the MicroLink Freedom

is plugged into the speech processor and EA is displayed.

Now you can listen for about one minute to both, the

processor microphone and the FM signal when speaking

into the FM transmitter. The signal quality of the

monitoring phones or through the test adaptor does not

reflect the sound experienced by the implant user.

Insert three batteries into the MicroLink Freedom and 

plug it into the MicroLink Freedom test adaptor. Plug the

test adaptor into the headset checker (see page 12).

Turn On the headset checker and FM transmitter and you

should hear the FM signal.

The audio frequency response experienced this way is different

for the MicroLink Freedom compared to e.g. MLxi. This is

perfectly normal and does not interfere with proper functio-

ning. The microphone input through the socket at the

bottom of MicroLink Freedom is disabled.

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