Programming Reference:AudioSpellerTarget Class
The constructor takes a reference to a Speller object as a reference.
Presents the audio stimulus, and enters text into the speller object specified when constructing the target object.
string EntryText (rw)
The text entered into the speller object when the target is selected.
string Sound (rw)
A sound file to be played when the target is selected. Alternatively, a text to be rendered by the system's text-to-speech engine; enclose the text in single quotes to distinguish it from a sound file name.