I would like to combine (synchronized) a stereo soundtrack with a swf video. As far as I can tell, .soundtrack is not yet implemented, so I am willing to settle for .sound if necessary. However, when I use that, the result is mono and one channel is very quiet. If I use swfcombine, then there is noise in the background and, even worse, the frame rate (which was 5 and I even tried to force it to stay 5) is changed for the video. (The noise is there even before combining and is produced by ffmpeg in converting from wav; wav2swf produces only mono.)
If, on the other hand, I try to use ffmpeg instead to combine my files, then the video swf file cannot be imported since ffmpeg cannot find the codec parameters (even to use ffmpeg, I have to decompress it first with swfcombine, since I don't see how to produce an uncompressed swf using swfc).
It sounds like a very simple task that I want to accomplish, but it has turned out very difficult. Even Adobe's CS4 produces noise in the soundtrack.