Wpt types with voice message!?

Hi all together,

i read the instructions "Wpt types with voice message", but I didn't get it!

-> Wpt types with voice message.

You can add the type and message in the file customwpts.txt like this:
type -> continue
icon -> continue.png
voice msg -> Continue straight
add this line at the end of customwpts.txt file in OruxMaps / customwpts / folder:
continue|Continue straight

So do I need the "customwpts.txt" to use wpt with voice messaging? And do I need special mp3-files to have voice message?

I love Oruxmaps especially the 5th version , but I think I need help with this .

It was my fault! Text to speech modules were not installed - now everything works fine