This will run on a mac to generate speech from text (for direction prompts)

Code from:

http://www.macosxhints.com/article.php?story=20021219064523213

1) open the script (it will open in Script Editor)

2) click Run

3) follow the prompts

4) the leading _ adds a pause, it is also suggested that a 5sec pause is added at the end (this has to be done by hand not ____)

5) convert the resulting AIFF to MP3 (iTunes can do that)