Via Pro User’s Guide – TouchChat 93
Selecting the Scan Pattern
To select the scanning pattern, choose Menu > Settings, scroll to the Scanning section, and select
Scanning Type. Then select Sequential or Row/Column.
Using Sequential Scan Mode: A sequential scan steps through the buttons from left to right beginning in
the first row. When the button you want is highlighted, activate your switch.
Using Row/Column Scan Mode: A row/column scan highlights each row of buttons beginning with the
top row and move down the screen. When the row that contains the button you want is highlighted,
activate your switch. The scan will then step through the buttons from left to right across the row. When
the button you want is highlighted, activate your switch.
Including the Speech Display Bar (SDB) in Scans
To include the SDB in scans, choose Menu > Settings, scroll to the Scanning section, and turn Scan
Speech Display Bar on.
Configuring Empty Cells Scans
To turn scanning of empty button areas on or off, choose Menu > Settings, scroll to the Scanning
section, and select Skip Empty Cells. When selected, scanning will skip over an area without a button or
a button that only has a speech message action but no text.
Setting Scan Timing
Scan speed is the amount of time your device takes to move from one button, row, or column to the
next in a scan. To set the scan speed, choose Menu > Settings, scroll to the Scanning section, and select
Scan Speed. For example, if you selected 1.0 Seconds, a scan would take one second from the time one
button is highlighted until the next button is highlighted.
Configuring Re-scans
Select the number of times you want your device to scan the page automatically. Once you reach the set
number of re-scans, the scan will stop until a switch is activated again. To set the number of re-scans,
choose Menu > Settings, scroll to the Scanning section, and select Number of Rescans. Choose the
appropriate number of rescans.
Turning on Auto Restart
When Auto-Scan and Auto Restart are both turned on, a scan cycle restarts automatically after an activation.
To turn on auto restart, choose Menu > Settings, scroll to the Scanning section, and turn Auto Restart on.
Setting Auditory Scan
This option enables audio feedback during scanning. To set auditory prompts, choose Menu > Settings,
scroll to the Scanning section, and turn Auditory Scan on. If you are scanning, simply activate your
switch. To retrieve a message, activate the switch again after you hear the prompt.
Choosing and Adjusting a Prompt Voice
When choosing a voice to use for auditory prompts, it can be helpful to choose a different voice than
the one the system uses for speaking messages. To change the voice, choose Menu > Settings, scroll to
the Scanning section, select Prompt Voice, and select the voice you want.
To adjust the rate at which the prompt voice speaks, move the Prompt Voice Rate slider to the right for
a higher voice rate or to the left to lower the rate until the prompt voice speaks at the rate you want.
To adjust the pitch of the prompt voice, choose Menu > Settings, scroll to the Scanning section, and
select Prompt Voice Pitch. Then choose the pitch you want.
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