Opening Real Video 4 with AAC audio in AviSynth

[Alex_ander]

When I open RM file (Real Video 4, AAC audio 64kbs, 32kHz, 16bit) in Avisynth (v. 2.57RC1) as DS source (Real and QT alternatives installed) and test the .avs file, no audio stream is shown/played in WMP or VDub. Should I specify the audio parameters (or load audio decoder) in my script (for usual RM video/audio I didn't need it) to make AviSynth find it?
There are no problems playing the file on PC. Graphedit shows 'FFDShow audio decoder' used for playback but I can't record its output with FileWriter.
EO Video decodes audio to .wav but I'd like to open video/audio in AviSynth to be sure the decoded streams are in synch. What shall I do for this? Thanks.

[Alex_ander]

LOL, after 3 days on the top of 'advanced conversion' section the question was moved here to 'newbie'. As I can guess it was too simple (hope not too foolish) for an answer. Any help from AviSynth users please! The stream info for the file taken from Media Info utility.

[guns1inger]

You may have to demux the audio from the RM and encode it seperately, then mux it back into your video later.