I finally found it! A Screenplay TTS tool

In my previous post I was missing two words from my keyword search criteria "Screenplay TTS."

The first result was for ScriptVOX Studio at Screaming Bee.

At first I thought it was too good to be true because I searched hours for exactly this. It's very affordable and PayPal friendly. The license key was immediately available via email.

It can import Microsoft Word files or text files, or you can start from scratch with the inline editor. Best of all is you can create as many new actors for your script as you need and alter their voices. Screaming Bee also has a library of additional voices, which may only be setting changes, so there's very little danger of running out of space.

I ran ScriptVOX Studio live with MovieStorm to see if I could simply play the Script and record the dialogue in MovieStorm but my microphone was still the main input and ScriptVox could not be directly recorded. I wouldn't get into system configuration changes. The best course of action is to actually get an external audio mixer.

The workflow integration into MovieStorm will still require clipping the individual actors lines into separate audio files, so you may need to rename your actors' audio clips so they sort in proper order when you go to import them from your project's file folder.

DRIVE:/ROOT/USER/AUDIO/PROGRAM/PROJECT/DIALOGUE/Act_Scene_Order_Actor_Name.wav
In other words, the real path would look something like this:

C:/User/Fred/Audio/MovieStorm/Macbeth/Dialogue/01_01_01_Actor_Name.wav

...then the file directory system should sort the files in proper order for easy import.