Since AS3 came up with ByteArray and BitmapData.setPixels, I hoped to get also access to the SoundBytes. The deal is simple. If you havn’t an API to make SoundEffects, just write them on your own. I’m sure that AS3 is fast enough to provide some realtime computation, like mixing, sequencing and filtering channels. If not, there is also the possebility to compute things over time. All the other stuff as pitching samples could be added in further flashplayer versions as a player supported API.