Cochlear SPrint Sound Processor Informações Técnicas descarregar pdf (Página 37)

CLINICAL GUIDANCE | SECTION ONE

softer speech sounds. In both cases, C-levels should be re-assessed.

The Sensitivity Mode may be set to ‘Manual’ or ‘Fixed’. When set to the ‘Manual’

mode the recipient can manually adjust the sensitivity setting by pressing the

appropriate buttons on the Freedom

™

. This can also be done with the CP810

Sound Processor if the ‘Advanced (sensitivity)’ UI (user interface) is selected in

Custom Sound

™

or the CR110 Remote Assistant can be used to make sensitivity

changes on the CP810 processor. When set to the ‘Fixed’ mode (or the ‘Simple’

UI is indicated for the CP810 processor), the sound processor buttons to adjust

sensitivity do not function. (The sensitivity can also be locked in the CR110

Remote Assistant used with the CP810 processor by choosing this option in

Custom Sound.) The ﬁxed mode is sometimes the preferred mode for the

programming of young children, where it is preferable that the sensitivity is not

adjusted. In this case it is recommended to also choose an environment setting

that includes autosensitivity

™

(ASC). The function of the autosensitivity control

(ASC) is to automatically adjust the microphone sensitivity based on the noise

ﬂoor of the incoming acoustic signal. If the noise ﬂoor is above a programmable

breakpoint, it is likely that the gain (sensitivity) is too high for that situation. In

this case the ASC gradually reduces the sensitivity. If the noise ﬂoor is below

the breakpoint the gain is gradually increased back to the manual setting. The

programmable breakpoint is referred to as the ‘Autosensitivity Breakpoint’ and

is by default set to 57 dB SPL for the CP810/Freedom processors. This means

that the autosensitivity function is activated (i.e. will start turning down the

sensitivity), once the background noise reaches 57 dB SPL.

ASC is available as a setting for all Cochlear sound processors.

1.11.2 Volume Setting

The CP810 and Freedom

™

processors provide the option to adjust the volume

level in addition to the microphone sensitivity. For the CP810 processor,

the maximum volume setting display is 10 and the minimum setting is 1.

For Freedom, the maximum volume setting display for 9, and the minimum

setting is 0. The effect of adjusting the volume setting is to globally reduce

the C-levels by a certain percentage of the dynamic range. The overall range

of reduction is programmable. The default setting involves a 20% reduction in

C-levels between the maximum and minimum volume settings.The maximum

volume level results in stimulation at C-level. If the recipient requires the option

to increase the volume under certain listening situations, it is recommended

that a global increase in C-levels be applied to the MAP, and that the volume

setting be reduced to an intermediate setting to provide room to adjust the

volume in both directions.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 77 78

Comentários a estes Manuais

Sem comentários

Cochlear SPrint Sound Processor Informações Técnicas Página 37

Comentários a estes Manuais

Manuais e produtos relacionados com não Cochlear SPrint Sound Processor