Sound with Sync:stream issue

Hello Kirupians :slight_smile:

I have a HQ sound file that i import inside a flash movie. It’s an animation so i have to sync my sound file with some images, just like i’d do if i’d edit a video using Premiere and such…
The thing is, using Sync: Stream seems to alterate dramaticly the sound quality… Is there a work around? Is it supposed to be like that??

ps: i’ve tried with wav and mp3 and no flashmx compression on thoses…