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Direct Access Accessibility Settings

If you can't access an app, what good is it?

TapSpeak Choice has the best set of accessibility features of any AAC app and in many cases, better accessibility than traditional devices. Our accessibility features are divded into direct access accessibility modes and scanning modes. This page addresses direct access accessibility modes.

Choice can support people with the following accessibility issues.

  • Stimming behaviors
  • Tremors
  • High/low muscle tone
  • Palm resters
  • Multilple contact points (fingers) on device
  • Help develop finer-grained motor control
  • and more!

Here are our access modes:

Tap

Anti-Stimming

Touch

Detect Touch on Release

Touch Averaging

Choice has to be in direct access mode to make use of the accessiblity settings. Scanning modes are handled here. Check the scanning modes in the Scanning Settings scren. Tap iPad for the switch configuration and Direct Select for the scan type.

You can get to the accessibility settings through the Settings menu via the gear icon on the page view toolbar.

The accessibility settings screen lets you select a direct access style, tap duration and drift settings, failed tap feedback, anti-stimming settings, and touch average trail length. 

Tap Mode

The Tap mode invokes a button with a touch and release motion. The Touch setting only requries a touch. a Tap needs to be within a button's border to be detected. 

The Tap Duration and Tap Drift settings can be used to encourage finer-grained motor control. For those who have trouble with releases, you can set the duration and drift sliders to the right of their scales to allow a greater degree of "slop" in finger movements. If Failed Tap Feedback is set on and and finger movements exceed the drift/duration parameters, a "bloop" sound will alert to a tap that drifts too much or stays on the iPad surface too long. Move the drift/duration sliders to the left to as motor control progresses to encourage greater motor skill control.

For most cases, set the duration/drift sliders to mid-scale. If you hear the "bloop" with every tap, make sure the sliders aren't all the way to the left.

Anti-Stimming

The anti-stimming feature discourages stimming behaviors by discarding taps made after an initial tap for a certain number of seconds. Ant-stemming works on all direct access modes. Enable anti-stimming by turning on the anti-stimming switch. When you turn on the anti-stimming switch, the Stim Delay slider becomes active. The stim delay can range from 0.5 seconds to eight seconds. During the stim delay period any tap on the iPad surface is discarded.

Touch Mode

The Touch mode will activate a button with only a touch of the iPad surface. This is especially useful for beginning AAC users on, say, two-button boards where any kind of contact on the iPad surface will activate a button. You can then make use of any kind of motion - swipe, light touch, hit, any contact whatsoever to activate a button. You can use the anti-stimming feature with the Touch access mode.

Detect Touch on Release

The Release mode actuates a button at the point where the last contact point is lifted from the iPad surface. The use of one or more fingers, palm contacts, etc, is supported in the Release mode. A touch down on the iPad surface begins the release detection. Touches can be added or lifted during this time and not affect the release point. It's not until the last finger is lifted that a touch on the iPad surface is detected. There's no time constriant to how long contact is maintained until a touch is detected. Anti-stimming works on the Release mode.

Touch Averaging

The Average mode averages the motion of one or more touches to determine the button to actuate. This mode works for those with tremors, vision issues, or anything where approximate touches/motions can be used to access a button. Examples of motions can include squiggles, circle motions, even pinch motions. Averaging will work for some palm resters, we're working on further refinements. 

The Average Trail setting lets you adjust how much of a touch trail to use for the average calculation. For example you may start a touch at the same location on the iPad and then drag your finger to the button you want. Along the way a touch can go everywhere on the screen, but only arrive at the desired button after many seconds. Only the last bit of touch motion is desired for the average calculation. Set the Average Trail setting short enough to ignore unneeded touch history, but long enough to get enough touch history to ensure an accurate average calculation.

Anti-stimming works with touch averaging.