Mariner Narrator for Mac Using the rich voices already in the Mac OS X system, Narrator allows you to paste your text into the window or import an RTF, .txt or .doc file into Narrator and your letter, story  any text  is brought to life using voice synthesis. You can choose different voices, rates, pitches, inflections and volumes for each character you assign, giving your text a wide range of expressiveness. There are also silent read-along options for stage directions or for you to read out your own parts. Export to iTunes or an AAC file to listen on your iPhone, iPad or iPod Break up larger works into multiple characters and multiple chapters