You are right, this seems to work:
c:\subsonic\transcode\ffmpeg -i "G:\Music\iTunes\Ace Of Base\
The Bridge\01 Beautiful Life.mp3" -acodec pcm_f32le -f wav - | c:\subsonic\trans
code\sox -t wav --ignore-length - -t wav - | c:\subsonic\transcode\qaac -s -a 12
8 --adts -o - -
It works on the command line, but no subsonic, but atleast I know qaac is working. Thanks a lot