Kathy Perez has a number of good CDs that teach you how to achieve a more feminine voice. I believe the CDs were called Fundamentals of a Female Voice. There were something like 3 volumes. Many of those techniques found their way into her iphone apps that eventually became the Eva app. She does have a lot of great knowledge and techniques in those videos and apps, however, the problem is the trans clients she used to demo the techniques don't sound like women at all, but rather trans women with male voices who are trying to sound female. Sometimes a "feminine voice" does not equal a "female voice." I also found it a little disturbing that she had a snide remark on one of her CDs about how male and female anatomies are just different, which, as a beginner, would sound discouraging. Nix the remark and the CDs are pretty good, but your mileage may vary.
