PUBLIC MARKS from Monique with tag "lecteur d'écran"

The short answer is that you can’t. At the time of writing there isn’t a way to reliably detect whether someone visiting your site is using a screen reader (or screen magnifier). You might have heard that Flash will do the trick, but that might not be quite the solution you’re expecting.

To help you select an accessible title tag separator I have created a table of commonly used separator characters below and recorded the ouput from JAWS