Sound in Flash
THE EDIT ENVELOPE WINDOW offers some limited sound editing features without having to leave the Flash environment. There’s enough features here to control the starting and ending points of your sound file, as well as some basic fading effects. But don’t expect much more beyond that.
As much as Flash could use a few more bells and whistles in this area, it was never meant to be a sound editing program in the first place. Let’s leave that for the dedicated sound editing applications and use Flash for what it is. We can’t expect Flash to do everything can we?
1 Select frame 1 in your Flash document and then go to File > Import > ...