Scanning lets you use Talk Suite even if you can’t control your hands or arms enough to tap the screen buttons independently (which is called “Direct Selection”. By attaching bluetooth (or wired) buttons (called switches) to your iPad, you can make selections “indirectly.” That’s called “Indirect Selection.”
Scanning is perhaps the most complex aspect of AAC. As scanners are also some of the most complex users of speech devices. In order to really make scanning work for a person, there are many settings to consider. Following are the main ones you’ll find in Talk Suite.