Sound still persist after unload?

I have unloaded the external swf that contains sound. but the sound still persist, how do I get rid of this sound? please help, I’m pulling my hair here.

I’ve tried:

  • _loader.unloadAndStop();
  • flash.media.SoundMixer.stopAll();

all doesn’t work because stopping sound that way only works when the sound has already playing. If the sound is “about to play” (but not play yet) the stopAll() cannot prevent the upcoming sound from playing.

many thanks.