Ok, sound experts need a couple of answers

[doppler]

$embed is prob, the way to go.  Audacity is the way to mass convert wavs to mp3.  I intend to write a neat little program using about 70 very short audio feedbacks.  The feedbacks are essential, too make it work professionally.  I also intend first post the program here.  I intend to use dropbox for version tracking updates and program updates.

I never found a truly free phone app to do what I want.  Money grubbers let you have a taste of what makes there app great.  Then charge $20/year for unlimited feature use.  Well then money grubbers meet your worst Bête noire.  A moocher who knows how to write code.