You might want to also ask this in the www.streetdeck.com forum, the software writers monitor and respond there. I know that doesn't answer your question, honestly I have no idea. I do know you can go to your settings and adjust when the voice directions are given, but I'm sure that isn't what you are concerned with. Sounds like you have your own tweak or digimod in mind?
All installed, and ready for visitors. Infill G4 in a 2007 Saturn VUE