3 Replies
Jeff Forrer

You could hire an outside company to take your text and record your audio and provide you .wav or .mp3 files for import into Storyline.  You could also record your own using a microphone and import those files into Storyline.

You can't add other voices to the text-to-speech feature, you have to use the ones that are included with the program, or create your own audio files to import.