Setting The Audio Frequency; Fine Tuning The Pitch; Adjusting The Volume; Application Points - Servona digital XL Manual De Instrucciones

5.7 Setting the audio frequency

Warning
• Never hold the SERVOX ® digital XL speech aid to your ear!
• Never adjust the SERVOX digital XL speech aid while holding it at an application point!
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To make the speech sound as natural as possible, the pitch should be adjusted as close as possible to
the former voice position.
Setting the audio frequency of the buttons
First remove the titanium sleeve. Replace the battery holder and screw
the base cover back on
There are 2 DIP switches on the back of the housing. Each of the DIP
switches is assigned to one of the buttons.
The assignment "A" and "B" is labelled on the DIP switch side.
Assignment of the DIP switches
 Button A = DIP switch 2
Figure (15) DIP switches
 Button B = DIP switch 1
The DIP switches can be operated with a pin.
Setting options with DIP switch and button
If both DIP switches are in the OFF position (top), the audio frequency is
secured against change.
If the DIP switch of a button is set to ON, the sound frequency of this
button can be increased or decreased by pressing the other buttons.
 Increase frequency by1 Hz -> press button A 1 x
 Decrease frequency by1 Hz -> press button B 1 x
 Press repeatedly to increase or decrease each in 1 HZ steps
 When a button is held longer, the value increases or decreases
continuously.
Setting button A
 Slide DIP switch 2 to ON (down) position
 Slide DIP switch 1 to OFF (up) position
 Setting the audio frequency of button A using the two buttons
 Slide DIP switch 2 back to OFF (up) position to save the setting
Figure (16) Setting
Setting button B
 Slide DIP switch 1 to ON (down) position
 Slide DIP switch 2 to OFF (up) position
 Setting the audio frequency of button B using the two buttons
 Slide DIP switch 1 back to OFF (up) position to save and the setting
After finishing the settings, both DIP switches must be in the OFF positi-
Figure (17) Setting button A
on (top) again.
Saving the settings in the speech aid processor can take up to 30
seconds. After finishing the settings, wait 30 seconds and only then
unscrew the bottom cover and remove the battery holder, slide on the
titanium cover from below, reinsert the battery holder and screw on the
bottom cover again.
Figure (18) Setting button B
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5.8 Fine tuning the pitch

By turning the screw cap (F), the pitch can still be changed slightly. Be careful not to overtighten the
screw cap so as not to damage it.
 For a 'clearer sound', tighten the screw cap slightly
 For a 'purer sound' at maximum volume, loosen the screw cap slightly

5.9 Adjusting the volume

Warning
• Never hold the SERVOX ® digital XL speech aid directly to an ear or place it on top of it!
The volume can be adjusted with the volume control wheel next to the
buttons.
 Increase volume by one level -> 1 x slide the wheel upwards
 Reduce volume by one level -> 1 x slide wheel down
The maximum volume is about 87 dB.
Changing the volume for both buttons simultaneously
 Do not press a button
 Press the wheel up or down
 Press one of the buttons to check the volume
 Repeat the procedure until the desired volume is reached
Changing the volume for one button
 Press and hold the button
 Press the volume control wheel up or down repeatedly until the
desired volume is reached
Figure (19) Volume control
wheel

5.10 Application points

Warning
• Only place the SERVOX digital XL speech aid on uninjured, healthy skin!
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Application points are the places on the throat, floor of the mouth or
cheek that allow sound to be transmitted through the tissue when the
SERVOX digital XL speech aid is applied.
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Skin folds, scars, beard hair or clothing between the speech aid and
the skin can affect the sound quality. The sound should be clean and
without noise, such as humming. The optimal application point is the
spot that lets the sound through best.
In order to find the best individual application point, the speech aid
should be placed in front of a mirror at all application points and tried
Figure (20) Application point
at the floor of the mouth out.
To try out the sounds, the mouth should be opened slightly and a long
stretched vowel such as a long "AAAA" should be spoken. Tones can be
varied by changing the pressure with which the SERVOX
pressed onto the application point or by moving the speech aid slightly
up or down from the application point.
If possible, practise using the speech aid as part of a speech therapy
session.
Figure (21) Application point
on the cheek
EN
® digital XL is
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