Via Pro/Via Mini User’s Guide: Dialogue AAC
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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 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 the Dialogue app and continue using head tracking.
6. If the screen still dims too soon, repeat steps 1 through 5.
Head Tracking Tips
Pausing Head Tracking
When you turn head tracking on, “Pause” appears centered between Vocab and Menu. When you
activate Pause, head tracking stops temporary and “Resume” appears. Use your trigger action to
activate Resume and start up head tracking again.
Note:
When the on/off head tracking setting
Start Paused
is turned on, head tracking is paused by
default when opened. Simply Activate
Resume
to start making selections.
Scrolling
When head tracking is enabled, quick scroll arrows appear in the corners of the Dialogue app settings
and the list of vocabularies. When you need to scroll through these lists of items, point at and trigger the
appropriate quick scroll arrow.
Scroll down through the listed items
Scroll up through the listed items
Jump to the bottom of the list
Jump to the top of the list
Troubleshooting Head Tracking
When you try to enable head tracking in the Dialogue app settings, you see the message “Camera
Permission Denied”.
While customizing a vocabulary sometime in the past, you may have denied camera access.
Resolution:
1. Open the iPad settings.
2. Select the
Dialogue
app in the left pane.
3. In the right pane under “Allow Dialogue to Access”, turn
Camera
on.
4. Return to the Dialogue app and enable head tracking in the settings.
