Why does audio click/pop at in and out of any transition I apply?

Question

If it's not a pop or a click, after I apply a transsion for some reason the audio level drops during the transition and doesn't appear to be adjustable even with clicking the edit volume button. I have tried many many things and all that seems to work is extracting the audio from both clips that are next to eachother first, and then apply a transition and it seems to be ok but even doing this numerous times I have attempted to extract audio from one clip by pressing Command J or going through the menu and gotten a completely different clips audio when before I extracted the audio it was fine. Why does this happen? In addtion the titles I've added always appear pixilated? Any suggestions? I have read the entire tutorial and know how everthing is supposed to work but nothing seems to be doing what it's supposed to.

Answer 1

You hear a pop or gap during a title or transition in iMovie
http://www.info.apple.com/kbnum/n107945
After applying a title or transition, you may sometimes hear a pop or brief period of silence between the transition and the next clip.
A clip's volume is lower after you use an effect or title in iMovie 4
http://docs.info.apple.com/article.html?artnum=107944
For titles, they often look bad on the Mac. Will look fine on TV. You should use simple (sans-serif) fonts like Helvetica or Arial in large sizes.