Via Pro User’s Guide – TouchChat
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Highlight Buttons
When Highlight Buttons is turned on, buttons are highlighted by a colored outline to indicate head
position as you move your head. Tap to turn on the highlight. You can indicate head position by cursor,
by highlight, or by both at the same time.
Note:
Highlight Buttons is turned on by default. If you turn Highlight Buttons off, be sure to select a
cursor shape. If you turn Highlight Buttons off and set Cursor Shape to None, you will have no visible
way to track head movement.
Cursor Adjustment
Cursor Adjustment allows you to adjust the relative position of the cursor when the user is unable to be
positioned directly in front of the device. Choose one of these options:
Defaults
Selecting Defaults will reset the cursor's center position back to system defaults. This
assumes the user is positioned directly in front of the device.
Center
Selecting Center will adjust the position of the cursor so that it is centered with
respect to the user’s current head position. If you change the orientation or the
position of the device relative to the user, you may need to re-center the cursor.
For example, a device is mounted slightly to the left of the user on a wheelchair.
Because of this, when the user looks straight ahead, the cursor may appear shifted to
the right. To compensate for this, have the user position his or her head at a
comfortable, natural starting position and then select
Center
. This will automatically
adjust the cursor so that it is once again centered on the screen, relative to the user.
Cursor Smoothing
Smoothing compensates for minor shakiness or tremors to reduce accidental button activations. The
greater the user’s involuntary head movement, the more you may need to increase the smoothing value
to compensate. A lower smoothing value will also make the cursor more responsive. Choose one of
these options:
Low
The cursor will appear less stable, but will be more responsive to head movements.
Medium*
The cursor will appear slightly more stable, and will be slightly less responsive to head
movements.
High
The cursor will appear very stable, but will be less responsive to head movements.
Additional Setting – Auto-Lock Time
If the device screen dims while you are using head tracking, change the Auto-Lock time. Change the time
only as much as necessary. Longer auto-lock times will use more battery charge.
1.
Open the iPad Pro
Settings
.
2.
Select
Display & Brightness
in the left pane.
3.
In the right pane, select
Auto-Lock
.
4.
Select the next higher time value.
5.
Return to TouchChat and continue using head tracking.
6.
If the screen still dims too soon, repeat steps 1 through 5.
