Dejal Systems has released its first product for Mac OS X.
Narrator is an application using speech synthesis to read out text. Passages can be spoken with different voices, pitches and inflections.
Words are highlighted on-screen, as they are spoken aloud and there are also a couple of silent read-along options or stage directions.
Narrator is available at an introductory price of $24.95 from Deejal Systems.
A fully-featured trial is also available as a free free download.