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DynaVox Technologies
Note:
The visual settings for the focus indication box (color, inverse coloring, etc.) apply to all
alternative touchscreen modes, including scanning, whether they are set here or in the scanning
dialog. If you are using scanning, make sure your touchscreen selection method is set to
Select
on Push
or the scanning focus might not display correctly.
For users with vision or literacy problems, the
Audio Preview
feature can be useful when used in conjunction
with
Select on Release
or
Dwell
modes. When this feature is enabled, you can hear an audio preview of a
button without actually selecting the button. The system will speak the label of the button after having the
focus for an amount of time equal to half of the dwell time. This is true even when using
Select on Release
mode (which does not actually use the dwell time for selection).
Figure 12: The Touchscreen Dialog
Because the synthetic voice used for audio preview is meant only for you, it is called the "private voice.” You
can set the private voice in the
Speech
tab of the
Options
dialog (see section 4.9). By making your private
voice sound different than your "public voice," it will be easier for you (and your conversation partners) to
distinguish between audio previews and what you are actually trying to say.
By default, if you select the Editor Window, your Palmtop device will speak its contents. If the system is
already speaking when you select the Editor Window, your device will stop speaking. This behavior can be
disabled by unchecking the
Tap Editor to Speak
box. When this button is unchecked, tapping the Editor
Window will have no effect on the system.
4.6. General Options: Input Filtering
Selecting the correct onscreen button or keyboard key can be difficult for some individuals due to tremors or
limited fine motor control. This dialog has controls that will configure the touchscreen to filter out unwanted
inputs.
If you want to select items using the touchscreen, you must first check the
Touchscreen
box in the
Input
section of the
General Options
dialog. You can then tailor the input filtering by pressing the
Input Filtering
Configure
button.
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