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Neurelec Digi SP and Digisonic BTE

List of required parts

Digi SP/ Digisonic BTE speech processor

MLxi or MicroMLxS

Pre-Fitting

When using MLxi, it should be programmed for the specific 

speech processor using FM SuccessWare (see page 32).

The Digi SP and Digisonic BTE processors provide two 

additional programs (P3/P4) dedicated to an auxiliary

input connection. These two programs need to be

adapted to different sound environments according

to the procedure below.

Fitting with the user

1. Switch Off all equipment.

2. Plug the FM receiver directly into the auxiliary (“AUX”)

input of the processor. When MicroMLxS is used, move

the switch to the single green dot position.

3. Switch the processor On in P1 or P2. The processor

automatically detects the presence of the receiver and

switches to the specific P3/P4 to be set for the first use.

4. Use the implant programming software to adapt these

specific programs (copy P1/P2 into P3/P4 and authorize

the auxiliary input). Adapt the appropriate audio mixing

ratio of the FM and processor microphone.

5. Test the patient’s speech recognition in quiet with the CI

alone and then through the wireless FM system only (out

of range of the processor microphone). Performance

should be similar between these two conditions. If the FM

is too loud or too soft, it may be necessary to modify the

input gain (microphone and/or FM) until comparable

performance is achieved.

6. 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.

Listening check

The environmental and FM signals can be checked using 

the dedicated function in the implant programming

software.

Plug the MLxi or MicroMLxS into the headset checker (See 

page 12). Turn On the headset checker and FM transmit-

ter and you should hear the FM signal.

Plug the MLxi or MicroMLxS into an audioshoe attached 

to a hearing instrument. Turn On the hearing instrument

and switch it to the FM program if required.

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