Cochlear SPrint Sound Processor Informações Técnicas descarregar pdf (Página 10)

SECTION ONE | CLINICAL GUIDANCE

1. Stop the stimulation and sweep all of the channels at 80% and then at

C-level to conﬁrm that sounds are comfortably loud. (Open the Sweep

menu by clicking on the Sweep drop-down menu.) You can balance

loudness across the channels by sweeping a small set of channels (4 – 5

at a time) to conﬁrm equal loudness. To adjust individual channel C-levels

that have not been measured, double-click the speciﬁc channel or click

the “make all channels measurable button” and then modify individual

C-levels as necessary.

2. Save the MAP.

3. Make additional MAPs as necessary.

4. Personalize the MAPs for the listening environment(s) or create

Progressive MAPs (where C-Levels are automatically adjusted to a

predetermined level for each programming location) prior to writing

them to the sound processor.

5. Predict new levels for a different stimulation rate using

streamlined programming.

1.1.2 NRT/Objective Offset Method

The NRT/objective offset method offsets the T-level proﬁle from the objective

measurement proﬁle, and enables a single offset channel to be measured using

psychophysics. C-levels are measured using live voice testing.

1. Measure impedances by performing an implant test.

2. Obtain objective measures (the default is Neural Response Telemetry)

in the operating room or during the programming session using the

AutoNRT

™

function in Custom Sound or using Custom Sound

™

software (AutoNRT available for Freedom and later model implants only).

To measure NRT in Custom Sound, select “Perform AutoNRT” under the

programming tasks. By default, the software automatically measures

T-NRT on channels 22, 16, 11, 6, and 1 using an ascending approach

and built-in detection algorithm. (You may select other channels.)

T-NRT values are saved automatically. Alternatively, you can use T-NRT

measurements from Custom Sound EP.

3. In the Select MAP screen, create a new MAP by selecting the required

MAP parameters from the available drop-down menus and clicking

Create. Alternatively, you can select and open an existing MAP that you

can modify.

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Cochlear SPrint Sound Processor Informações Técnicas Página 10