Yeah, I've seen this tut. I've edited the text but used no siundfile for the first attempt, then recorded a mute (silent) file.
I'll try a soundfile with volume and your recommended settings for volume an lip movements, THx for your help!
You need to type the characters lines into the speech box and record your voice. Or... you can upload a Wav recording into the composition. Once you've done this, hit the save button.